
Main Menu Table of Contents
Differential Assembly
Reassembly
NOTE:
If replacement is required, always replace the drive
pinion and ring gear as a set.
If the drive pinion and ring gear are replaced, check the
height adjustment (see page 15-24).
If replacement of one of the tapered roller bearings in
the drive pinion and in the differential carrier is
required, use the same make bearings and replace both
bearings at the same time.
ETCHED MARK
eg: A1- +/- 20
DRIVE PINION set number
RING GEAR SET NUMBER
1. Install the 43 mm thrust shim and tapered roller
bearing using the special tools and a press as shown.
NOTE: Use a used pinion spacer with the special
tool for bearing installation, and then discard the
used pinion spacer.
PRESS
TAPERED ROLLER DRIVER, 40 mm I.D.
BEARING 07746-0030100
ATTACHMENT, 35 mm
43 mm 07746-0030400
THRUST
SHIM
PINION SPACER
(Used)
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2. Check the differential case bearing surface areas for b. Next install the inboard bearing outer race.
burrs, and remove as needed. Position the inboard
thrust washer into the differential case. Using the TAPERED
sides of the special tools stamped "A", install the BEARING RACE
outboard bearing outer race as shown. Repeat for INSTALLER A
07MAF-SP0011A
the inboard bearing outer race.
THRUST WASHER
THRUST WASHERS BEARING OUTER RACE
(inboard)
MARK B MARK B
TAPERED
BEARING RACE
INSTALLER BEARING INSTALLER B
SHAFT OUTER 07MAF-SP0012A
07MAF-SP0013A RACE
BEARING OUTER
RACE (outboard)
3. Install the 79.5 mm thrust shim(s) and bearing outer
race using the special tools as shown.
NOTE: Install the 79.5 mm thrust shim(s) that was
DIFFERENTIAL removed.
CASE
79.5 mm
THRUST SHIM(S)
a. First install the outboard bearing outer race. (1 or 2 shims)
DIFFERENTIAL
BEARING OUTER RACE
TAPERED CASE
BEARING RACE
INSTALLER A
07MAF-SP0011A THRUST WASHER
MARK B MARK B
TAPERED
BEARING BEARING DRIVER
BEARING RACE
OUTER ATTACHMENT DRIVER
INSTALLER B
RACE 07MAF-SP0012A 07GAD-SD40101 07749-0010000
INSTALLER
SHAFT
07MAF-SP0013A
79.5 mm THRUST SHIM(S)
(1 or 2 shims)
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Differential Assembly
Reassembly (cont'd)
4. Install the 79.5 mm thrust shim(s) and bearing outer 6. Apply lubricant to the tapered roller bearing, then
race using the special tools as shown. install it using the special tool while holding the drive
pinion as shown.
NOTE: Install the 79.5 mm thrust shim(s) that was
removed.
BEARING OUTER RACE
79.5 mm THRUST SHIM(S)
(1 or 2 shims)
DRIVER, 40 mm I.D.
07746-0030100
DIFFERENTIAL
CASE COVER TAPERED ROLLER
BEARING
DRIVE PINION
BEARING DRIVER DRIVER
ATTACHMENT 07749-0010000
07GAD-SD40101
7. Install the large thrust washer, pinion hub, small
thrust washer, and a new locknut.
NOTE: Lubricate the locknut and drive pinion threads
with gear oil.
79.5 mm THRUST SHIM(S)
(1 or 2 shims) LOCKNUT
5. Apply lubricant to the tapered roller bearing, then
THRUST WASHER
install the drive pinion into the differential case as
shown. PINION HUB
NOTE: Do not install the pinion spacer and thrust
washers at this time. THRUST WASHER
DRIVE PINION
DRIVE PINION
DIFFERENTIAL
CASE
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8. Hold the drive pinion with a 1 1/4" (32 mm) hex bit 12. Install the special tool as shown, then rotate the
and socket as shown, then carefully tighten the pin- drive pinion in both directions so that the ring gear
ion locknut until there is no play in the pinion shaft. rotate one full turn in both directions. During this
operation resistance should be applied to the ring
Torque: 20 N-m (2.0 kgf-m, 14 Ibf-ft) gear.
LOCKNUT SOCKET,
36 x 41 mm
CAUTION: To avoid damaging the tapered roller 07HAA-SF10100
bearing, do not overtighten the locknut.
1 1/4" (32 mm) HEX BIT and SOCKET
(Commercially available)
CORRECT TOOTH CONTACT
13. Remove the differential case cover, and check the
tooth contact pattern (heel and toe). Adjust the ring
gear tooth contact as needed (see page 15-25).
9. Clean the ring gear teeth, then paint them lightly and 14. After adjusting the ring gear tooth contact, remove
evenly with Prussian Blue (on both sides of each the drive pinion, then install a new pinion spacer
tooth). and thrust washers on the drive pinion.
10. Apply lubricant to the tapered roller bearings, install PINION SPACER
the differential carrier into the differential case, then
install the differential case cover.
THRUST WASHERS
11. Install the bolts and tighten in a crisscross pattern in
several steps. 10 x 1.25 mm
44 N-m (4.5 kgf-m, 33 Ibf-ft)
DIFFERENTIAL
CASE COVER
DRIVE PINION
DIFFERENTIAL
CARRIER
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Differential Assembly
Reassembly (cont'd)
15. Apply lubricant to the tapered roller bearing, then 17. Hold the drive pinion with a 1 1/4" (32 mm) hex bit
install it using the special tool while holding the and socket as shown.
drive pinion as shown.
1 1/4" (32 mm) HEX BIT
and SOCKET
(Commercially available)
DRIVER, 40 mm I.D.
07746-0030100
TAPERED ROLLER
BEARING
16. Install the large thrust washer, pinion hub, small 18. Tighten the locknut to 216 N-m (22 kgf-m, 159 Ibf-ft),
thrust washer and locknut. and measure the tapered roller bearing preload
(Tp).
NOTE: Lubricate the locknut and drive pinion threads
with gear oil. NOTE: Rotate the drive pinion several times to
assure proper tapered roller bearing contact.
Standard:
New Bearing: 1.82 - 2.49 N-m
LOCKNUT
(18.6 - 25.4 kgf-cm, 16.1 - 22.0 Ibf-in)
Reused Bearing: 1.42 - 1.91 N-m
THRUST WASHER (14.5 -19.5 kgf-cm, 12.6 - 16.9 Ibf-in)
PINION HUB