Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Frontier 1998-2002 Approved Nissan Frontier 2000 KA24DE PD

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                                                                                           PROPELLER SHAFT &                                                                  GI
                                                                                         DIFFERENTIAL CARRIER
                                                                                                                                                                              MA


                                                                                                     SECTION                                  PD                              EM

                                                                                                                                                                              LC

                                                                                                                                                                              EC

                                                                  CONTENTS                                                                                                    FE

PREPARATION................................................................3               Extension Tube and Differential Side Shaft ..............21
                                                                                                                                                                              CL
  Special Service Tools ..................................................3              INSPECTION..................................................................23
NOISE, VIBRATION AND HARSHNESS (NVH)                                                       Ring Gear and Drive Pinion ......................................23
TROUBLESHOOTING .....................................................7                     Differential Case Assembly........................................23               MT
  NVH Troubleshooting Chart.........................................7                      Bearing.......................................................................23
                                                                                         ADJUSTMENT ...............................................................24
                          PROPELLER SHAFT                                                  Side Bearing Preload.................................................24            AT
                                                                                           Pinion Gear Height and Pinion Bearing Preload.......25
PROPELLER SHAFT ......................................................8                    Tooth Contact.............................................................29
  On-vehicle Service.....................................................10              ASSEMBLY....................................................................30       TF
  Removal and Installation............................................10                   Extension Tube and Differential Side Shaft ..............30
  Inspection...................................................................10          Differential Case ........................................................30
                                                                                           Final Drive Housing ...................................................31          PD
  Disassembly...............................................................11
  Assembly ...................................................................12
                                                                                                                            H190A                                             FA
                                FINAL DRIVE
                                                                                         REAR FINAL DRIVE .....................................................35
ON-VEHICLE SERVICE ................................................14                    DISASSEMBLY..............................................................36          RA
   Front Oil Seal Replacement                                                              Pre-inspection ............................................................36
   (Front final drive: Model R180A) ...............................14                      Differential Carrier......................................................36
                                                                                           Differential Case ........................................................38       BR
   Rear Cover Gasket Replacement
   (Rear final drive: Model C200) ..................................14                   INSPECTION..................................................................40
REMOVAL AND INSTALLATION (Front final                                                      Ring Gear and Drive Pinion ......................................40
                                                                                           Differential Case Assembly........................................40
                                                                                                                                                                              ST
drive)..............................................................................15
   Removal.....................................................................15          Bearing.......................................................................40
   Installation..................................................................15      ADJUSTMENT ...............................................................41         RS
REMOVAL AND INSTALLATION (Rear final drive) ....16                                         Side Bearing Preload.................................................41
   Removal.....................................................................16          Pinion Gear Height ....................................................42
   Installation..................................................................16        Tooth Contact.............................................................46       BT
                                                                                         ASSEMBLY....................................................................47
                                                                                           Differential Case ........................................................47
                                     R180A
                                                                                           Differential Carrier......................................................48       HA
FRONT FINAL DRIVE ...................................................17
                                                                                                                              C200
DISASSEMBLY..............................................................18                                                                                                   EL
  Pre-inspection ............................................................18
  Final Drive Housing ...................................................18              REAR FINAL DRIVE .....................................................52
  Differential Case ........................................................20                 2WD models .....................................................52             IDX
                                                    CONTENTS                                  (Cont'd.)
        4WD models .....................................................53             Tooth Contact.............................................................64
DISASSEMBLY..............................................................54          ASSEMBLY....................................................................65
  Pre-inspection ............................................................54        Differential Case ........................................................65
  Differential Carrier......................................................54         Differential Carrier......................................................66
  Differential Case ........................................................56       SERVICE DATA AND SPECIFICATIONS (SDS) ..........70
INSPECTION..................................................................58         Propeller Shaft ...........................................................70
  Ring Gear and Drive Pinion ......................................58                  Final Drive..................................................................71
  Differential Case Assembly........................................58                    General Specifications ..........................................71
  Bearing.......................................................................58        Inspection And Adjustment (R180A) .....................72
ADJUSTMENT ...............................................................59              Inspection And Adjustment (H190A) .....................73
  Side Bearing Preload..................................................59                Inspection And Adjustment (C200) .......................74
  Pinion Gear Height ....................................................60




                                                                                PD-2
                                                      PREPARATION

                                                     Special Service Tools                                                               GI
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number                                                                                                      Unit application        MA
(Kent-Moore No.)            Description
Tool name                                                                                                  R180A     H190A      C200
                                                                                                                                         EM
ST3127S000                                                          Measuring pinion bearing preload
(See J25765-A)                                                      and total preload
Preload gauge
 1 GG91030000
                                                                                                                                         LC
    (J25765)
    Torque wrench
 2 HT62940000
                                                                                                            X           X           X    EC
    (   --   )
    Socket adapter
 3 HT62900000
                                                                                                                                         FE
    (   --   )
    Socket adapter          NT124
                                                                                                                                         CL
KV38100800                                                          Mounting final drive
(J25604-01), (J34310)                                               (To use, make a new hole.)
Differential attachment                                                                                                                  MT
                                                                                                            X          --           --


                            NT119                                   a: 152 mm (5.98 in)                                                  AT
ST06310000                                                          Mounting final drive
(J25602-01)                                                                                                                              TF
Differential attachment
                                                                                                            --          X           --

                                                                                                                                         PD
                            NT140

ST33290001                                                          Removing side bearing outer race                                     FA
(J25810-A)                                                          and side oil seal
Side bearing outer race
                                                                                                            X          --           --
puller                                                                                                                                   RA
                            NT076
                                                                                                                                         BR
ST38060002                                                          Removing and installing propeller
(J34311)                                                            shaft lock nut and drive pinion lock
Drive pinion flange                                                 nut
                                                                                                            X           X           X    ST
wrench

                            NT113
                                                                                                                                         RS
ST3090S000                                                          Removing and installing drive pinion
(    --    )                                                        rear inner cone
Drive pinion rear inner                                                                                                                  BT
race puller set
  1 ST30031000
    (J22912-01)                                                                                                                          HA
    Puller                                                                                                  X           X           X
  2 ST30901000
    (J26010-01)                                                                                                                          EL
    Base

                                                                    a: 79 mm (3.11 in) dia.                                              IDX
                                                                    b: 45 mm (1.77 in) dia.
                            NT527                                   c: 35 mm (1.38 in) dia.


                                                               PD-3
                                           PREPARATION
                                          Special Service Tools (Cont'd)
Tool number                                                                                     Unit application
(Kent-Moore No.)            Description
Tool name                                                                                 R180A     H190A      C200

ST3306S001                                        Removing and installing differential
Differential side bearing                         side bearing inner cone
puller set
 1 ST33051001
     (J22888-20)
     Body
                                                                                           X           X           X
 2 ST33061000
     (J8107-2)
     Adapter


                                                  a: 28.5 mm (1.122 in) dia.
                            NT072                 b: 38 mm (1.50 in) dia.

ST33230000                                        Installing side bearing inner cone
(J25805-01)
Differential side bearing
drift                                                                                      X           X           X
                                                  a: 51 mm (2.01 in) dia.
                                                  b: 41 mm (1.61 in) dia.
                            NT085                 c: 28.5 mm (1.122 in) dia.

ST33081000                                        Installing side bearing inner cone
(   --    )
Side bearing puller
adapter                                                                                    --         --           X


                                                  a: 43 mm (1.69 in) dia.
                            NT431                 b: 33.5 mm (1.319 in) dia.

KV38100600                                        Installing side bearing spacer
(J25267)
Side bearing spacer drift                                                                  --         --           X

                                                  a: 8 mm (0.31 in)
                            NT528                 b: R42.5 mm (1.673 in)

ST30611000                                        Installing pinion rear
(J25742-1)                                        bearing outer race
Drift
                                                                                           X           X           X


                            NT090

ST30621000                                        Installing pinion rear bearing outer
(J25742-5)                                        race
Drift
                                                                                           X           X           X

                                                  a: 79 mm (3.11 in) dia.
                            NT073                 b: 59 mm (2.32 in) dia.

ST30701000                                        Installing pinion front bearing outer
(J25742-2)                                        race
Drift
                                                                                           X          --           --

                                                  a: 61.5 mm (2.421 in) dia.
                            NT073                 b: 41 mm (1.61 in) dia.



                                                PD-4
                                             PREPARATION
                                            Special Service Tools (Cont'd)
                                                                                                                          GI
Tool number                                                                                       Unit application
(Kent-Moore No.)              Description
Tool name                                                                                   R180A     H190A      C200
                                                                                                                          MA
ST30613000                                          Installing pinion front bearing outer
(J25742-3)                                          race
Drift                                                                                                                     EM
                                                                                             --          X           X

                                                    a: 72 mm (2.83 in) dia.
                              NT073                 b: 48 mm (1.89 in) dia.
                                                                                                                          LC

KV381025S0                                          Installing front oil seal
(    --      )                                                                                                            EC
Oil seal fitting tool
  1 ST30720000
    (J25405)                                                                                                              FE
    Drift bar                                                                                X           X           --
  2 KV38102510
    (     --     )                                                                                                        CL
    Drift
                                                    a: 77 mm (3.03 in) dia.
                                                    b: 55 mm (2.17 in) dia.
                                                    c: 71 mm (2.80 in) dia.                                               MT
                              NT525                 d: 65 mm (2.56 in) dia.

KV38100500                                          Installing front oil seal
(J25273)
                                                                                                                          AT
Gear carrier front oil seal
                                                                                             --         --           X
drift
                                                                                                                          TF
                                                    a: 85 mm (3.35 in) dia.
                              NT115                 b: 60 mm (2.36 in) dia.

ST33720000                                          Installing side retainer                                              PD
(J25817)
Differential side retainer                                                                   X          --           --
guide                                                                                                                     FA
                              NT138

ST33270000                                          Installing side oil seal
                                                                                                                          RA
(J25809)
Side oil seal drift

                                                                                             X          --           --   BR

                                                    a: 62 mm (2.44 in) dia.                                               ST
                              NT526                 b: 28 mm (1.10 in) dia.

(J34309)                                            Adjusting bearing pre-load and gear
Differential shim                                   height                                                                RS
selector

                                                                                                                          BT
                                                                                             X           X           X


                                                                                                                          HA

                              NT134
                                                                                                                          EL
(J25269-4)                                          Selecting pinion height adjusting
Side bearing discs                                  washer
(2 req'd)                                                                                    X          --           X    IDX
                              NT136


                                                  PD-5
                                            PREPARATION
                                           Special Service Tools (Cont'd)
Tool number                                                                                     Unit application
(Kent-Moore No.)             Description
Tool name                                                                                 R180A     H190A      C200

(J25269-18)                                        Selecting pinion height adjusting
Side bearing discs                                 washer
(2 req'd)                                                                                  --          X           --

                             NT135

(J8129)
Spring gauge

                                                                                           X           X           X
                                                   Measuring carrier turning torque
                             NT127

(J35764)                                           Installing side oil seal
Gear carrier side oil seal
drift
                                                                                           X          --           --


                             NT120

KV381051S0                                         Checking differential torque on lim-
(    --   )                                        ited slip differential
Rear axle shaft dummy
  1 KV38105110
    (   --    )                                                                            --          X           X
    Torque wrench side
  2 KV38105120
    (   --    )
    Vice side
                             NT142




                                                 PD-6
                                                                    Symptom



                            X : Applicable
                                                                                                                                                                                          Reference page




                                                                                                                           Possible cause and




                                                                        SHAFT
                                                                                                                           SUSPECTED PARTS




                                                                        PROPELLER



                                             DIFFERENTIAL
                                             Noise
                                                                                    Noise
                                                                          Shake
                                                            Vibration
                                                            X
                                                                                    X
                                                                                            Uneven rotation torque                                                                        --




                                                            X
                                                                          X
                                                                                    X
                                                                                            Center bearing improper installlation                                                    PD-9, 12




                                                            X
                                                                                    X
                                                                                            Excessive center bearing axial end play                                                       --




                                                            X
                                                                                    X
                                                                                            Center bearing mounting (insulator) cracks, damage or deterioration                           --




                                                            X
                                                                                    X
                                                                          X
                                                                                            Excessive joint angle                                                                         --




PD-7
                                                            X
                                                                                    X
                                                                                            Rotation imbalance                                                                        PD-10




                                                            X
                                                                                    X
                                                                                            Excessive runout                                                                          PD-10




                                             X
                                                                                            Rough gear tooth                                                                     PD-23, 40, 58




                                             X
                                                                                            Improper gear contact                                                                PD-29, 46, 64




                                             X
                                                                                            Tooth surfaces worn                                                                  PD-23, 40, 58




                                             X
                                                                                            Incorrect backlash                                                                   PD-33, 50, 68




                                             X
                                                                                            Companion flange excessive runout                                                             --
                                                                                                                                                                                                                                                                                                                                        NVH Troubleshooting Chart




                                             X
                                                                                            Improper gear oil                                                       Refer to MA section




                                             X
                                                                                            PROPELLER SHAFT                                                         Refer to PROPELLER SHAFT in this chart




                                                                                    X
                                                                                            DIFFERENTIAL                                                            Refer to DIFFERENTIAL in this chart




                                             X
                                                            X
                                                                                    X
                                                                          X
                                                                                            DRIVE SHAFT                                                             NVH in FA section




                                             X
                                                            X
                                                                                    X
                                                                          X
                                                                                            AXLE AND SUSPENSION                                                     NVH in FA, RA section




                                             X
                                                            X
                                                                                    X
                                                                          X
                                                                                            TIRES                                                                   NVH in FA section
                                                                                                                                                                                                                                                                                                                                                                    NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING




                                             X
                                                                                    X
                                                                          X
                                                                                            ROAD WHEEL                                                              NVH in FA section




                                             X
                                                                                    X
                                                                          X
                                                                                            BRAKES                                                                  NVH in BR section
                                                                                                                                                                                                                          Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.




                                             X
                                                            X
                                                                                    X
                                                                          X
                                                                                            STEERING                                                                NVH in ST section
                                                                                                                                                                                                                                                                                                                                                 GI




                                                                                                                                                TF
                                                                                                                                                     AT




             EL
                                                                                                                                                                       FE




                                                                              ST
                                                                                                                 FA




                       BT
                                                                                                                                                               CL
                                                                                                                                                                                                           LC




                                             RS
                                                                                                                                                                                EC




                                                                                                      RA




                  HA
                                                                                             BR
                                                                                                                                                          MT




                                                                                                                         PD
                                                                                                                                                                                                                EM
                                                                                                                                                                                                                     MA




       IDX
                                 PROPELLER SHAFT   PROPELLER SHAFT


Front propeller shaft (Model 2F1310)




                                                              APD025


Rear propeller shaft (Model 2S1310)




                                                              APD024


                                       PD-8
                                 PROPELLER SHAFT   PROPELLER SHAFT


Rear propeller shaft (Model 3S1310)                                    GI

                                                                       MA

                                                                       EM

                                                                       LC

                                                                       EC

                                                                       FE

                                                                       CL

                                                                       MT

                                                                       AT

                                                                       TF
                                                              WPD017

                                                                       PD

                                                                       FA

                                                                       RA

                                                                       BR

                                                                       ST

                                                                       RS

                                                                       BT

                                                                       HA

                                                                       EL

                                                                       IDX


                                      PD-9
         PROPELLER SHAFT                             PROPELLER SHAFT


          On-vehicle Service
          PROPELLER SHAFT VIBRATION
          If vibration is present at high speed, inspect propeller shaft runout
          first.
          1. Raise rear end of vehicle until wheels are clear of the ground.
          2. Measure propeller shaft runout at several points along propel-
                 ler shaft by rotating final drive companion flange using hands.
          3. If runout exceeds specifications, disconnect propeller shaft at
                 final drive companion flange. Rotate companion flange 180
SPD728
                 degrees, then reconnect propeller shaft.
                     Runout limit: 0.6 mm (0.024 in)
          4. Check runout again. If runout still exceeds the limit, replace
                 propeller shaft assembly.
          5. Perform road test.

          APPEARANCE CHECKING
          q    Inspect propeller shaft tube surface for dents or cracks and
               replace as necessary.
          q    Check center bearing for noise or damage and replace as
               necessary.

SPD102


          Removal and Installation
          1.   Place matching marks on flanges, then separate propeller
               shaft from final drive.




SPD103

          2.   Remove propeller shaft.
          q    Insert plug into rear oil seal after removing rear propeller
               shaft.




SPD359


          Inspection
          q    Inspect propeller shaft runout. If runout exceeds the limit,
               replace propeller shaft assembly.
                  Runout limit: 0.6 mm (0.024 in)




SPD106


                  PD-10
          PROPELLER SHAFT                             PROPELLER SHAFT
           Inspection (Cont'd)
           q    Inspect journal axial play.                                    GI
                If play exceeds the limit, replace propeller shaft assembly.
                    Journal axial play:
                        0.02 mm (0.0008 in) or less                            MA

                                                                               EM

                                                                               LC
 SPD874


           Disassembly                                                         EC
           CENTER BEARING
           1.   Place matching marks on flanges, then separate 2nd tube from FE
                1st tube.
                                                                               CL

                                                                               MT
 SPD109

           2.   Place matching marks on the flange and shaft.                  AT

                                                                               TF

                                                                               PD

                                                                               FA
 SPD110

           3.   Remove locking nut using Tool.                                 RA
                  Tool number:
                      ST38060002 (J34311)
           4.   Remove companion flange using puller.                          BR

                                                                               ST

                                                                               RS
SPD170A

           5.   Remove center bearing using Tool and press.
                                                                               BT
                  Tool number: ST30031000 (J22912-01)
                                                                               HA

                                                                               EL

                                                                               IDX
 SPD113


                   PD-11
         PROPELLER SHAFT                            PROPELLER SHAFT
          Disassembly (Cont'd)
          JOURNAL
          NOTE:
          1. Place matching marks on propeller shaft and flange or yoke.




SPD128

          2.   Remove snap ring.




APD011

          3.   Remove pushed out journal bearing by lightly tapping yoke
               with a hammer, taking care not to damage journal and yoke
               hole.




SPD732

          4. Remove bearing at opposite side in above operation.
          Put marks on disassembled parts so that they can be
          reinstalled in their original positions.




SPD131


          Assembly
          CENTER BEARING
          q    When installing center bearing, position the ``F'' mark on cen-
               ter bearing toward front of vehicle.
          q    Apply a coat of multi-purpose lithium grease containing
               molybdenum disulfide to the end face of the center bearing
               and both sides of the washer.


SPD114


                  PD-12
         PROPELLER SHAFT                              PROPELLER SHAFT
          Assembly (Cont'd)
          q    Stake the nut. Always use new one.                                 GI
          q    Align match marks when assembling tubes.
                                                                                  MA

                                                                                  EM

                                                                                  LC
SPD117

          JOURNAL                                                                 EC
          1. Assemble journal bearing. Apply recommended multi-purpose
             grease on bearing inner surface.
                                                                        FE
          When assembling, be careful that needle bearing does not fall
          down.
                                                                                  CL

                                                                                  MT
SPD133

          2.  Select snap ring that will provide specified play in axial direction AT
              of journal, and install them.
              Refer to SDS, PD-70.
          Select snap rings with a difference in thickness at both sides TF
          within 0.06 mm (0.0024 in).
                                                                                  PD

                                                                                  FA
APD012

          3.   Adjust thrust clearance between bearing and snap ring to zero RA
               by tapping yoke.
                                                                                  BR

                                                                                  ST

                                                                                  RS
SPD732

          4.   Check to see that journal moves smoothly and check for axial
                                                                                  BT
               play.
                  Axial play: 0.02 mm (0.0008 in) or less
                                                                                  HA

                                                                                  EL

                                                                                  IDX
SPD874


                  PD-13
      ON-VEHICLE SERVICE                                        FINAL DRIVE


           Front Oil Seal Replacement
           (Front final drive: Model R180A)
           1.   Remove front propeller shaft.
           2.   Loosen drive pinion nut.
                  Tool number: ST38060002 (J34311)




 SPD733

           3.   Remove companion flange using puller.




 SPD734

           4.   Remove front oil seal.




 SPD735

           5.   Apply multi-purpose grease to cavity at sealing lips of oil seal.
                Press front oil seal into carrier.
                   Tool number:
                         ST30720000 (J25405)
           6.   Install companion flange and drive pinion nut.
           7.   Install propeller shaft.




 SPD736


           Rear Cover Gasket Replacement
           (Rear final drive: Model C200)
           1.   Drain gear oil.
           2.   Remove rear cover and rear cover gasket.
           3.   Install new rear cover gasket and rear cover.
           4.   Fill final drive with recommended gear oil.




SPD740-A


                   PD-14
REMOVAL AND INSTALLATION (Front final drive)                          FINAL DRIVE


                 Removal                                                                   GI
                 1.   Remove front propeller shaft.
                 2.   Separate drive shaft from front final drive. Refer to FA section MA
                      [``Drive Shaft'', ``FRONT AXLE (4WD)''].
                 3.   Remove engine mounting bolts and raise up engine.
                 4.   Remove front final drive together with differential mounting EM
                      member.

                                                                                           LC
        SPD741


                 Installation                                                              EC
                 1.   Install front final drive assembly together with differential
                      mounting member.                                              FE

                                                                                           CL

                                                                                           MT
        SPD742

                 2.   Tighten front final drive securing bolts and nuts by following the   AT
                      procedure to prevent drive train vibration.
                 a.   Temporarily tighten nut A .
                 b.   Temporarily tighten nut B .                                          TF
                 c.   Tighten bolt C to the torque of 68 to 87 N m (6.9 to 8.9 kg-m,
                      50 to 64 ft-lb).
                 d.   Tighten bolt D to the torque of 68 to 87 N m (6.9 to 8.9 kg-m,       PD
                      50 to 64 ft-lb).
                 e.   Tighten nut A to the torque of 68 to 87 N m (6.9 to 8.9 kg-m,
                      50 to 64 ft-lb).                                                     FA
                 f.   Tighten nut B to the torque of 68 to 87 N m (6.9 to 8.9 kg-m,
                      50 to 64 ft-lb).
                 g.   Tighten nut E to the torque of 68 to 87 N m (6.9 to 8.9 kg-m,        RA
                      50 to 64 ft-lb).
                 3.   Install drive shaft. Refer to FA section [``Drive Shaft'', ``FRONT
                      AXLE (4WD)''].                                                       BR
                 4.   Install front propeller shaft.

                                                                                           ST

                                                                                           RS
        SPD743
                                                                                           BT

                                                                                           HA

                                                                                           EL

                                                                                           IDX


                         PD-15
REMOVAL AND INSTALLATION (Rear final drive)                        FINAL DRIVE


                 Removal
                 q   Remove propeller shaft.
                 Plug front end of transfer.
                 q   Remove axle shaft.
                     Refer to RA section (``REAR AXLE'').
                 CAUTION:
                 q   Be careful not to damage spline, sleeve yoke and front oil
                     seal when removing propeller shaft.
                 q   Before removing the final drive assembly or rear axle
                     assembly, disconnect the ABS sensor harness connector
                     from the assembly and move it away from the final drive/
                     rear axle assembly area. Failure to do so may result in the
                     sensor wires being damaged and the sensor becoming
                     inoperative.




                 Installation
                 q   Fill final drive with recommended gear oil.




        SPD123




                        PD-16
FRONT FINAL DRIVE   R180A


                              GI

                              MA

                              EM

                              LC

                              EC

                              FE

                              CL

                              MT

                              AT

                              TF

                              PD

                              FA

                              RA

                              BR

                              ST

                              RS

                              BT

                              HA

                              EL

                              IDX

                     APD026


      PD-17
             DISASSEMBLY                                           R180A


         Pre-inspection
         Before disassembling final drive, perform the following inspection.
         q   Total preload
         a. Turn drive pinion in both directions several times to set bearing
             rollers.
         b. Check total preload with Tool.
                 Tool number: ST3127S000 (J25765-A)
                 Total preload:
                      1.2 - 2.3 N m
                      (12 - 23 kg-cm, 10 - 20 in-lb)
SPD634

         q    Ring gear-to-drive pinion backlash
              Check backlash of ring gear with a dial indicator at several
              points.
                 Ring gear-to-drive pinion backlash:
                      0.13 - 0.18 mm (0.0051 - 0.0071 in)




SPD635

         q    Ring gear runout
              Check runout of ring gear with a dial indicator.
                 Runout limit:
                     0.05 mm (0.0020 in)
         q    Tooth contact
              Check tooth contact. Refer to ``ADJUSTMENT'', PD-29.




SPD636


         Final Drive Housing
         1.   Using three spacers [20 mm (0.79 in)], mount final drive
              assembly on Tool.
                 Tool number:
                     KV38100800 (J34310), (J25604-01)




SPD637

         2.   Remove extension tube and differential side shaft assembly.




SPD638


                 PD-18
           DISASSEMBLY                                               R180A
          Final Drive Housing (Cont'd)
          3.   Remove differential side flange.                              GI

                                                                             MA

                                                                             EM

                                                                             LC
 SPD713

          4. Mark side retainers for identification. Remove side retainers. EC
          Be careful not to confuse right and left side retainers and
          shims.
                                                                             FE

                                                                             CL

                                                                             MT
 SPD639

          5.   Extract differential case from final drive housing.           AT

                                                                             TF

                                                                             PD

                                                                             FA
 SPD309

          6.   Remove side outer races.                                 RA
                 Tool number: ST33290001 (J25810-A)
          Keep the side bearing outer races together with their respec-
          tive inner cones -- do not mix them up.                       BR
          7. Remove side oil seal.
                                                                             ST

                                                                             RS
  PD243

          8.   Loosen drive pinion nut.
                                                                             BT
                 Tool number: ST38060002 (J34311)
          9.   Remove companion flange with puller.
                                                                             HA

                                                                             EL

                                                                             IDX
SPD171A


                  PD-19
          DISASSEMBLY                                             R180A
         Final Drive Housing (Cont'd)
         10. Take out drive pinion together with pinion rear bearing inner
             cone, drive pinion bearing spacer and pinion bearing adjusting
             washer.
         11. Remove front oil seal and pinion front bearing inner cone.




SPD641

         12. Remove pinion front and rear bearing outer races with brass
             drift.




 PD349

         13. Remove pinion rear bearing inner cone and drive pinion
             adjusting washer.
                Tool number: ST30031000 (J22912-01)




SPD209


         Differential Case
         1. Remove side bearing inner cones.
         To prevent damage to bearing, engage puller jaws in grooves.
               Tool numbers:
                    A ST33051001 (J22888-20)
                    B ST33061000 (J8107-2)




SPD642


                PD-20
           DISASSEMBLY                                               R180A
          Differential Case (Cont'd)
          Be careful not to confuse the right and left hand parts.                GI

                                                                                  MA

                                                                                  EM

                                                                                  LC
 SPD022

          2. Loosen ring gear bolts in a criss-cross fashion.                     EC
          3. Tap ring gear off differential case with a soft hammer.
          Tap evenly all around to keep ring gear from binding.
                                                                                  FE

                                                                                  CL

                                                                                  MT
 SPD024

          4. Separate differential case LH and RH.                  AT
          Put match marks on both differential case LH and RH sides
          prior to separating them.
                                                                                  TF

                                                                                  PD

                                                                                  FA
 SPD643

                                                                                  RA
          Extension Tube and Differential Side Shaft
          1.   Remove differential side shaft assembly from extension tube.
                                                                                  BR

                                                                                  ST

                                                                                  RS
 SPD644

          2.   Cut rear axle bearing collar with cold chisel. Be careful not to
                                                                                  BT
               damage differential side shaft.
                                                                                  HA

                                                                                  EL

                                                                                  IDX
SPD236A


                  PD-21
          DISASSEMBLY                            R180A
         Extension Tube and Differential Side Shaft
         (Cont'd)
         3.   Reinstall differential side shaft into extension tube and secure
              with bolts. Remove rear axle bearing by drawing out differential
              side shaft from rear axle bearing with puller.




SPD646

         4.   Remove grease seal.




SPD647




                 PD-22
              INSPECTION                                         R180A


         Ring Gear and Drive Pinion                                         GI
         Check gear teeth for scoring, cracking or chipping.
         If any damaged part is evident, replace ring gear and drive pinion MA
         as a set (hypoid gear set).

                                                                            EM

                                                                            LC


         Differential Case Assembly                                         EC
         Check mating surfaces of differential case, side gears, pinion mate
         gears, pinion mate shaft and thrust washers.                        FE

                                                                            CL

                                                                            MT

                                                                            AT

                                                                            TF

                                                                            PD

                                                                            FA
SPD648
                                                                            RA
         Bearing
         1.   Thoroughly clean bearing.
         2.   Check bearing for wear, scratches, pitting or flaking.        BR
              Check tapered roller bearing for smooth rotation. If damaged,
              replace outer race and inner cone as a set.
                                                                            ST

                                                                            RS
SPD715
                                                                            BT

                                                                            HA

                                                                            EL

                                                                            IDX


                 PD-23
           ADJUSTMENT                                                R180A


          For quiet and reliable final drive operation, the following five
          adjustments must be made correctly:
          1. Side bearing preload
          2. Pinion gear height
          3. Pinion bearing preload
          4. Ring gear-to-pinion backlash. Refer to ``ASSEMBLY'', PD-33.
          5. Ring and pinion gear tooth contact pattern.




          Side Bearing Preload
          A selection of carrier side retainer adjusting shims is required
          for successful completion of this procedure.
          1. Make sure all parts are clean. Also make sure the bearings are
              well lubricated with light oil or type ``DEXRONTM'' automatic
              transmission fluid.
          2. Install differential carrier and side bearing assembly into the
              final drive housing.


SPD191A

          3.   Place all of the original side retainer adjusting shims onto the
               side bearing retainer that goes at the ring gear end of the
               carrier.




SPD192A

          4.   Install both bearing retainers onto the final drive housing and
               torque the retainer bolts.
                  Bolt torque specification:
                      : 9 - 12 N m (0.9 - 1.2 kg-m, 78 - 104 in-lb)




SPD193A

          5.   Turn the carrier several times to seat the bearings.
          6.   Measure the carrier turning torque with a spring gauge, J8129,
               at the ring gear retainer bolt.
                   Turning torque specification:
                       34.3 - 39.2 N (3.5 - 4.0 kg, 7.7 - 8.8 lb)
                       of pulling force at the ring gear bolt




SPD194A


                  PD-24
           ADJUSTMENT                                               R180A
          Side Bearing Preload (Cont'd)
          7.   If the turning torque measured is incorrect, establish the cor- GI
               rect bearing preload by adding to or subtracting from the total
               amount of shim thickness.
          q    Increase shim thickness to decrease turning torque on the MA
               carrier.
          q    Decrease shim thickness to increase turning torque on the
               carrier.                                                        EM

                                                                                LC


          8.   Record the correct, selected total thickness of the side retainer EC
               adjusting shims, and remove the carrier and bearings from the
               final drive housing. Save all shims for later re-use.
                                                                                FE

                                                                                CL

                                                                                MT
SPD195A


          Pinion Gear Height and Pinion Bearing Preload AT
          1.   Make sure all parts are clean and that the bearings are well
               lubricated.                                                   TF
          2.   Assemble the pinion gear bearings into the pinion pre-load
               shim selector tool, J34309.
          q    Front Pinion Bearing -- make sure the J34309-3 front pinion PD
               bearing seat is secured tightly against the J34309-2 gauge
               anvil. Then turn the front pinion bearing pilot, J34309-7, to
               secure the bearing in its proper position.                    FA
 SPD769

                                                                                RA
          q    Rear Pinion Bearing -- the rear pinion bearing pilot,
               J34309-8, is used to center the rear pinion bearing only. The
            



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