Differential System - Differentials: Other Subaru Tribeca WX рестайлинг

REAR DIFFERENTIAL

When replacing a rear differential assembly, select the correct one according to the following chart.

Note. Using a different rear differential assembly will cause the drive train and tires to drag or emit abnormal noise. For option code, refer to IDENTIFICATION , Identification.

GENERAL SPECIFICATION

REAR DIFFERENTIAL GEAR OIL

Recommended gear oil

GL-5 (75W-90)

Scheme 67

SERVICE DATA

SERVICE DATA REFERENCE

ADJUSTING PARTS

TORQUE SPECIFICATION

THICKNESS SPECIFICATION

Scheme 68

Tightening torque: N.m (kgf-m, ft-lb)

T1: 25 (2.5, 18.4)

T2: 34 (3.5, 25.1)

T3: 50 (5.1, 36.9)

T4: 60 (6.1, 44.3)

T5: 62 (6.3, 45.7)

T6: 191 (19.5, 140.9)

Scheme 69

Tightening torque: N.m (kgf-m, ft-lb)

T1: 50 (5.1, 36.9)

T2: 70 (7.1, 51.6)

T3: 110 (11.2, 81.1)

CAUTION

1. Wear appropriate work clothing, including a cap, protective goggles and protective shoes when performing any work.
2. Remove contamination including dirt and corrosion before removal, installation or disassembly.
3. Keep the disassembled parts in order and protect them from dust and dirt.
4. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly and replacement.
5. Vehicle components are extremely hot after driving. Be wary of receiving burns from heated parts.
6. Use SUBARU genuine gear oil, grease etc. or equivalent. Do not mix gear oil, grease, etc. of different grades or manufacturers.
7. Be sure to tighten fasteners including bolts and nuts to the specified torque.
8. Place shop jacks or rigid racks at the specified points.
9. Apply gear oil onto sliding or revolving surfaces before installation.
10. Before installing the O-ring or snap ring, apply a sufficient amount of gear oil to avoid damage and deformation.
11. Before securing a part on a vise, place cushioning material such as wood blocks, aluminum plate, or cloth between the part and the vise.
12. Avoid damaging the mating surface of the case.

GENERAL TOOL

GENERAL TOOL SPECIFICATION

Scheme 70

1. Remove the filler plug, and check the differential gear oil. Replace the gear oil if it is contaminated or deteriorated. Ref. to «REPLACEMENT»(ref-356715-S09258319862010022700000) , Differential Gear Oil.
2. Check that the gear oil level is within -5 mm (-0.2 in) from the bottom of the filler plug hole. If the level is low, verify that there is no oil leakage, refill up to the bottom of filler plug.

Scheme 71

Scheme 72

1. Lift up the vehicle.
2. Remove the oil drain plug and filler plug, and drain the gear oil. CAUTION: Be careful not to burn your hands, because gear oil becomes extremely hot after running.
3. Tighten the oil drain plug. NOTE: Use a new gasket. Tightening torque: 50 N.m (5.1 kgf-m, 36.9 ft-lb)
4. Fill the differential carrier with gear oil to the bottom of filler plug. NOTE: Carefully refill oil while watching the level. Excessive or insufficient oil must be avoided. Recommended gear oil: Ref. to «SPECIFICATION»(ref-356715-S20594334522010022700000) , General Description. Oil capacity: 0.8 l (0.8 US qt, 0.7 lmp qt)
5. Install the filler plug. NOTE: Use a new gasket. Tightening torque: 50 N.m (5.1 kgf-m, 36.9 ft-lb)

NOTE

Regarding the front differential, refer to FRONT DIFFERENTIAL ASSEMBLY .

Scheme 73

Scheme 74

Scheme 75

Scheme 76

Scheme 77

Scheme 78

Scheme 79

Scheme 80

Scheme 81

Scheme 82

Scheme 83

1. Disconnect the ground cable from battery.
2. Position the select lever to neutral.
3. Release the parking brake.
4. Loosen the wheel nuts.
5. Lift up the vehicle.
6. Remove the wheels.
7. Remove the rear exhaust pipe and muffler. Ref. to «REMOVAL»(ref-356700-S05560753212010022700000) , Rear Exhaust Pipe. Ref. to «REMOVAL»(ref-356700-S17752562192010022700000) , Muffler.
8. Remove the heat shield cover.
9. Remove the propeller shaft. Ref. to «REMOVAL»(ref-356692-S21930114322010022700000) , Propeller Shaft.
10. Remove the connector from the rear differential oil temperature switch.
11. Prepare the transmission jack and band.
12. Remove the DOJ of rear drive shaft from rear differential.
13. Remove the nuts which hold the rear differential front member.
14. Support the rear differential with the transmission jack.
15. Loosen the self-lock nuts which hold the rear differential to rear crossmember.
16. Remove the rear differential front member.
17. Secure the rear differential using band.
18. Remove the self-lock nuts which hold the rear differential to rear crossmember.
19. Remove the air breather hose from the sub frame.
20. Remove the rear differential stud bolt from rear crossmember bushing. NOTE: When removing the stud bolt, carefully adjust the angle and location of transmission jack and jack stand, if necessary
21. Pull out the axle shaft from rear differential. NOTE: If it is difficult to remove the axle shaft from rear differential, remove it using tire lever.
22. Lower the transmission jack.
23. Secure the rear drive shaft to lateral link using wire.
24. Remove the rear differential member plate from rear differential.

Scheme 84

Scheme 85

Scheme 86

Scheme 87

Scheme 88

Scheme 89

Scheme 90

1. Insert the rear differential member plate into rear differential.
2. Set the rear differential to transmission jack. NOTE: Secure the rear differential to transmission jack using band.
3. Attach the ST to rear differential. ST 28099PA090 OIL SEAL PROTECTOR
4. Insert the spline shaft until the spline portion comes inside the side oil seal. ST 28099PA090 OIL SEAL PROTECTOR
5. Remove ST from rear differential.
6. Push the rear differential to insert the axle shaft into rear differential.
7. Adjust the transmission jack, if necessary, and insert the rear differential stud bolt into rear crossmember bushing properly.
8. After inserting the rear differential stud bolt into the rear crossmember bushing, lift up the transmission jack and align the rear differential to the its attachment position.
9. Tighten a new self-locking nut temporarily to rear crossmember.
10. Remove the band from rear differential. Lift up the rear differential until the rear differential is separated from the transmission jack.
11. Install the rear differential front member with a new self-locking nut. Tightening torque: T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb) T2: 110 N.m (11.2 kgf-m, 81.1 ft-lb)
12. Tighten the self-locking nut. Tightening torque: 70 N.m (7.1 kgf-m, 51.6 ft-lb)
13. Lower the transmission jack.
14. Install the air breather hose to the sub frame.
15. Install the propeller shaft. Ref. to «INSTALLATION»(ref-356692-S11530464212010022700000) , Propeller Shaft.
16. Install the heat shield cover.
17. Install the rear exhaust pipe and muffler. Ref. to «INSTALLATION»(ref-356700-S42472398842010022700000) , Rear Exhaust Pipe. Ref. to «INSTALLATION»(ref-356700-S25550105852010022700000) , Muffler.
18. Install the wheel. Ref. to «INSTALLATION»(ref-356712-S16594982162010022700000) , Aluminum Wheel.

HYPOID DRIVEN GEAR BACKLASH

Using a dial gauge, check the backlash of hypoid driven gear.

Hypoid driven gear backlash

0.10 - 0.15 mm (0.004 - 0.006 in)

If the hypoid driven gear backlash is not within the specification, adjust the side bearing preload or repair if necessary.

Scheme 91

TOOTH CONTACT BETWEEN HYPOID DRIVEN GEAR AND DRIVE PINION

Inspect the tooth contact between the hypoid driven gear and the drive pinion. Ref. to ASSEMBLY , Rear Differential (VA-type).

Scheme 92

Scheme 93

1. If rust or dirt is attached to the companion flange, remove them.
2. Set a dial gauge at a companion flange surface (mating surface of propeller shaft and companion flange), and then measure the companion flange runout. Limit of runout: 0.08 mm (0.003 in)
3. Set the gauge inside of the companion flange, and measure the runout. Limit of runout: 0.08 mm (0.003 in)
4. If either runout exceeds the limit, move the phase of companion flange and drive pinion 90° each, and find the point where the runout will be within the limit.
5. If the runout exceeds the limit when changing the phase, replace the companion flange and re-check the runout.
6. If the runout exceeds the limit after replacing the companion flange, the drive pinion may be assembled incorrectly or bearing is faulty.

REAR DIFFERENTIAL OIL TEMPERATURE SWITCH

Inspect the continuity of the rear differential oil temperature switch.

CONTINUITY SPECIFICATION

Scheme 94

Adjust hypoid driven gear backlash. Ref. to ASSEMBLY , Rear Differential (VA-type).

Adjust the tooth contact between hypoid driven gear and drive pinion gear. Ref. to ASSEMBLY , Rear Differential (VA-type).