Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2004 WRX STi 04. TRANSMISSION 04. MANUAL TRANSMISSION AND DIFFERENTIAL (5MT) 01. General Description
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GENERAL DESCRIPTION
MANUAL TRANSMISSION AND DIFFERENTIAL
1. General Description
A: SPECIFICATIONS
1. MANUAL TRANSMISSION AND DIFFERENTIAL
2.5 L
Model 2.0 L Turbo
Sedan Wagon
Type 5-forward speeds with synchromesh and 1-reverse
1st 3.454 3.454
2nd 2.062 1.947
3rd 1.448 1.366
Transmission gear ratio
4th 1.088 0.972
5th 0.780 0.738
Reverse 3.333
Front reduction Type of gear Hypoid
Final
gear Gear ratio 4.111 3.900
Type of gear Helical
Transfer
Rear reduction Gear ratio 1.000 1.100
gear Type of gear Hypoid
Final
Gear ratio 4.111 3.900 3.545
Front
Type and number of gear Straight bevel gear (Bevel pinion: 2, Bevel gear: 2)
differential
Center
Type and number of gear Straight bevel gear (Bevel pinion: 2, Bevel gear: 2 and viscous coupling)
differential
Transmission gear oil GL-5
Transmission oil capacity 3.5 2 (3.7 US qt, 3.1 lmp qt)
2. TRANSMISSION GEAR OIL
Recommended oil
(1)
(2)
(3)
GL-5
(4)
( C) -30 -26 -15 -5 0 15 25 30
( F) -22 -15 5 23 32 59 77 86
90
85W
80W
75W -90
MT-00001
(1) Item
(2) Transmission gear oil
(3) API classification
(4) SAE viscosity No. and applicable temperature
5MT-2
GENERAL DESCRIPTION
MANUAL TRANSMISSION AND DIFFERENTIAL
3. TRANSMISSION CASE ASSEMBLY 5. MAIN SHAFT
Drive pinion shim adjustment Snap ring (Outer-25) to synchronizer hub clear-
Hypoid gear backlash ance
0.13 -- 0.18 mm (0.0051 -- 0.0071 in) 0.060 -- 0.100 mm (0.0024 -- 0.0039 in)
Snap ring (Outer-25)
Drive pinion shim
Thickness Thickness
Thickness Thickness Part No. Part No.
Part No. Part No. mm (in) mm (in)
mm (in) mm (in)
805025051 2.42 (0.0953) 805025055 2.62 (0.1031)
0.150 0.250
32295AA031 32295AA071 805025052 2.47 (0.0972) 805025056 2.67 (0.1051)
(0.0059) (0.0098)
0.175 0.275 805025053 2.52 (0.0992) 805025057 2.72 (0.1071)
32295AA041 32295AA081 805025054 2.57 (0.1012) 805025058 2.37 (0.0933)
(0.0069) (0.0108)
0.200 0.300
32295AA051
(0.0079)
32295AA091
(0.0118)
6. REVERSE IDLER GEAR
0.225 0.500 Adjustment of reverse idler gear position
32295AA061 32295AA101
(0.0089) (0.0197) Reverse idler gear to transmission case (LH) wall
clearance
Selection of main shaft rear plate 6.0 -- 7.5 mm (0.236 -- 0.295 in)
Main shaft rear plate Reverse shifter lever
Dimension "A" mm (in) Part No. Mark Part No. Mark Remarks
4.00 -- 4.13 32820AA070 7 Further from case wall
32294AA041 1
(0.1575 -- 0.1626)
32820AA080 8 Standard
3.87 -- 3.99
32294AA051 2 32820AA090 9 Closer to the case wall
(0.1524 -- 0.1571)
After installing a suitable reverse shifter lever, ad-
4. DRIVE PINION ASSEMBLY just the reverse idler gear to transmission case wall
Preload adjustment of thrust bearing clearance to within 0 to 0.5 mm (0 to 0.020 in) using
Starting torque washers.
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