Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 490

DI-5

General Description

DIFFERENTIALS

• T-type (H3)

Part No.

Length mm (in)

Preload adjusting spacer

31454AA130

52.2 (2.055)

31454AA140

52.4 (2.063)

31454AA150

52.6 (2.071)

31454AA160

52.8 (2.079)

31454AA170

53.0 (2.087)

31454AA180

53.2 (2.094)

Part No.

Thickness mm (in)

Preload adjusting washer

383705200

2.59 (0.1020)

383715200

2.57 (0.1012)

383725200

2.55 (0.1004)

383735200

2.53 (0.0996)

383745200

2.51 (0.0988)

383755200

2.49 (0.0980)

383765200

2.47 (0.0972)

383775200

2.45 (0.0965)

383785200

2.43 (0.0957)

383795200

2.41 (0.0949)

383805200

2.39 (0.0941)

383815200

2.37 (0.0933)

383825200

2.35 (0.0925)

383835200

2.33 (0.0917)

383845200

2.31 (0.0909)

Pinion height adjusting washer

38336AA230

3.09 (0.1217)

38336AA240

3.12 (0.1228)

38336AA250

3.15 (0.1240)

38336AA260

3.18 (0.1252)

38336AA270

3.21 (0.1264)

38336AA280

3.24 (0.1276)

38336AA290

3.27 (0.1287)

38336AA300

3.30 (0.1299)

38336AA310

3.33 (0.1311)

38336AA320

3.36 (0.1323)

38336AA330

3.39 (0.1335)

38336AA340

3.42 (0.1346)

38336AA350

3.45 (0.1358)

38336AA360

3.48 (0.1370)

38336AA370

3.51 (0.1382)

38336AA380

3.54 (0.1394)

38336AA390

3.57 (0.1406)

38336AA400

3.60 (0.1417)

38336AA410

3.63 (0.1429)

38336AA420

3.66 (0.1441)

Side retainer shim

383475201

0.20 (0.0079)

383475202

0.25 (0.0098)

383475203

0.30 (0.0118)

383475204

0.40 (0.0157)

383475205

0.50 (0.0197)

DI-6

General Description

DIFFERENTIALS

B: COMPONENT

1. REAR DIFFERENTIAL (T-TYPE (B2))

(1)

Hypoid driven gear and drive pin-
ion set

(14) O-ring

(27) Filler plug

(2)

Pinion height adjusting washer

(15) Side retainer shim

(28) Drain plug

(3)

Rear bearing

(16) Side retainer

(29) Rear cover

(4)

Preload adjusting spacer

(17) Side oil seal

(30) Differential case

(5)

Preload adjusting washer

(18) Side gear thrust washer

(31) Gasket

(6)

Differential carrier

(19) Side gear

(7)

Front bearing

(20) Pinion mate gear

Tightening torque: N·m (kgf-m, ft-lb)

(8)

Spacer

(21) Pinion mate gear washer

T1: 10.5 (1.1, 7.7)

(9)

Pilot bearing

(22) Pinion shaft lock pin

T2: 29.5 (3.0, 21.8)

(10) Front oil seal

(23) Snap ring

T3: 49 (5.0, 36.1)

(11) Companion flange

(24) Pinion mate shaft

T4: 103 (10.5, 76.0)

(12) Self-locking nut

(25) Air breather cap

T5: 181.5 (18.5, 133.9)

(13) Side bearing

(26) Stud bolt

DI-00956

(1)

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(13)

(14)

(14)

(15)

(15)

(16)

(16)

(17)

(17)

(18)

(18)

(19)

(19)

(20)

(20)

(23)

(21)

(21)

(22)

(24)

(30)

(23)

(25)

(26)

(27)

(28)

(29)

(31)

T1

T2

T3

T3

T4

T5

T1

DI-7

General Description

DIFFERENTIALS

2. REAR DIFFERENTIAL (T-TYPE (H3))

(1)

Hypoid driven gear and drive pin-
ion set

(12) Self-locking nut

(23) Oil temperature switch

(2)

Pinion height adjusting washer

(13) Side bearing

(24) Drain plug

(3)

Rear bearing

(14) O-ring

(25) Gasket

(4)

Preload adjusting spacer

(15) Side retainer shim

(26) Stay ground

(5)

Preload adjusting washer

(16) Side retainer

(6)

Differential carrier

(17) Side oil seal

Tightening torque: N·m (kgf-m, ft-lb)

(7)

Front bearing

(18) Gasket

T1: 10.5 (1.1, 7.7)

(8)

Spacer

(19) Differential case ASSY

T2: 44 (4.5, 32.5)

(9)

Pilot bearing

(20) Rear cover

T3: 60 (6.1, 44.3)

(10) Front oil seal

(21) Air breather cap

T4: 103 (10.5, 76.0)

(11) Companion flange

(22) Stud bolt

T5: 181.5 (18.5, 133.9)

DI-00957

T4

T1

T2

(18)

(14)

(5)

(4)

(1)

(21)

(22)

(20)

(19)

(6)

(13)

(16)

(3)

(2)

(1)

(17)

(15)

T1

T5

(13)

(16)

(17)

(12)

(11)

(10)

(9)

(8)

(7)

(14)

(15)

(25)

T3

(25)

(24)

(23)

(26)

DI-8

General Description

DIFFERENTIALS

3. REAR DIFFERENTIAL MOUNTING SYSTEM

(1)

Rear differential front member

(4)

Sub frame

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Rear differential member plate

(5)

Self-locking nut

T1: 50 (5.1, 36.9)

(3)

Rear differential ASSY

(6)

Rear differential mounting bushing

T2: 70 (7.1, 51.6)

T3: 110 (11.2, 81.1)

DI-00649

(4)

T2

T3

T1

(3)

(2)

(1)

(5)

(5)

(5)

(6)

(6)