lock SUBARU TRIBECA 2009 1.G Service Workshop Manual

DI-4
General Description
DIFFERENTIALS
B: COMPONENT
1. REAR DIFFERENTIAL (VA2-TYPE)
(1) Hypoid driven gear and drive pin-
ion set
(13) Lock plate (26) Clip
(14) Side bearing (27) Stay ground
(2) Pinion height adjusting washer (15) O–ring (28)

Rear differential oil temperature
switch(3) Rear bearing (16) Axle shaft holder
(4) Bearing preload adjusting collar (17) Side oil seal
(5) Bearing preload adjusting washer (18) Differential case ASSYTightening torque: N·m (kgf-m, ft-lb)
(6) Differential carrier (19) Air breather hoseT1: 25 (2.5, 18.1)
(7) Front bearing (20) Stud boltT2: 29 (3.0, 21.4)
(8) Collar (21) GasketT3: 34 (3.5, 25.3)
(9) Pilot bearing (22) Oil filler plugT4: 60 (6.1, 44.3)
(10) Front oil seal (23) Oil drain plugT5: 62 (6.3, 45.6)
(11) Companion flange (24) Rear coverT6: 191 (19.5, 141)
(12) Self–locking nut (25) Gasket

DI-5
General Description
DIFFERENTIALS
2. REAR DIFFERENTIAL MOUNTING SYSTEM
(1) Rear differential front member (5) Self–locking nutTightening torque: N·m (kgf-m, ft-lb)
(2) Rear differential member plateT1: 65 (6.6, 48)
(3) Rear differential ASSYT2: 70 (7.1, 51)
(4) Sub Frame T3: 110 (11.2, 81)

DI-6
General Description
DIFFERENTIALS
C: CAUTION
•Wear work clothing, including a cap, protective goggles and protective shoes during operation.
•Remove contamination including dirt and corrosion before removal, installation or disassembly.
•Keep the disassembled parts in order and protect them from dust and dirt.
•Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, in-
stallation, disassembly and replacement.
•Be careful not to burn yourself, because each part on the vehicle is hot after running.
•Use SUBARU genuine grease etc. or equivalent. Do not mix gear oil, grease, etc. with those of different
grades or from other manufacturers.
•Be sure to tighten fasteners including bolts and nuts to the specified torque.
•Place shop jacks or rigid racks at the specified points.
•Apply gear oil onto sliding or revolution surfaces before installation.
•Before installing the O-ring or snap ring, apply a sufficient amount of gear oil to avoid damage and defor-
mation.
•Before securing a part on a vise, place cushioning material such as wood blocks, aluminum plate, or cloth
between the part and the vise.
•Avoid damaging the mating surface of the case.
D: PREPARATION TOOL
1. SPECIAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
398477701 HANDLE Used for installing the front and rear bearing
cones.
398217700 ATTACHMENT SET Stand for rear differential carrier disassembly
and assembly.
498447120 INSTALLER Used for installing the front oil seal.
ST-398477701
ST-398217700
ST-498447120

DI-7
General Description
DIFFERENTIALS
498427200 FLANGE WRENCH Used for stopping rotation of companion flange
when removing and tightening self-lock nut.
399780104 WEIGHT Used for installing the front bearing cone and the
pilot bearing companion flange.
498247001 MAGNET BASE • Used for measuring backlash between side
gear and pinion, and hypoid gear.
•Used with DIAL GAUGE (498247100).
498247100 DIAL GAUGE • Used for measuring backlash between side
gear and pinion, and hypoid gear.
•Used with MAGNET BASE (498247001).
398177700 INSTALLER Used for installing the rear bearing cone.
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST-498427200
ST-399780104
ST-498247001
ST-498247100
ST-398177700

DI-14
Rear Differential (VA–type)
DIFFERENTIALS
4. Rear Differential (VA–type)
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Release the parking brake.
3) Jack-up the vehicle.
4) Remove the rear exhaust pipe and muffler.
Pipe.>
5) Remove the heat shield cover.
6) Remove the propeller shaft.

7) Remove the connector from the rear differential
oil temperature switch.
8) Prepare the transmission jack and band.
9) Remove the DOJ of rear drive shaft from rear dif-
ferential.
10) Remove the nuts which hold the rear differen-
tial front member.
11) Support the rear differential with the transmis-
sion jack.
12) Loosen the self-lock nuts which hold the rear
differential to rear crossmember.
AT-03243
DI-00471
DI-00268
(A) Tire lever
(B) Bolt
DI-00472
(A)
(B)
DI-00358
DI-00473
DI-00269

DI-15
Rear Differential (VA–type)
DIFFERENTIALS
13) Remove the rear differential front member.
14) Secure the rear differential using band.
15) Remove the self-lock nuts which hold the rear
differential to rear crossmember.
16) Remove the air breather hose from the sub
frame.
17) 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
18) Pull out the axle shaft from rear differential.
NOTE:
If it is difficult to remove the axle shaft from rear dif-
ferential, remove it using tire lever.
19) Lower the transmission jack.
20) Secure the rear drive shaft to lateral link using
wire.
21) Remove the rear differential member plate from
rear differential.
B: INSTALLATION
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 us-
ing band.
3) Install the ST to rear differential.
ST 28099PA090 OIL SEAL PROTECTOR
DI-00474
DI-00276
DI-00277
(A) Rear differential member plate
(A) Rear differential member plate
DI-00475
(A)
DI-00475
(A)
DI-00476
ST

DI-16
Rear Differential (VA–type)
DIFFERENTIALS
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.
ST 28099PA090 OIL SEAL PROTECTOR
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 cross-
member bushing properly.
8) After inserting the rear differential stud bolt into
the rear crossmember bushing, lift up the transmis-
sion jack and align the rear differential to the its at-
tachment 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 sep-
arated from the transmission jack.
11) Install the rear differential front member with a
new self-locking nut.
Tightening torque:
T1: 65 N·m (6.6 kgf-m, 48 ft-lb)
T2: 110 N·m (11.2 kgf-m, 81 ft-lb)
DI-00289
ST
DI-00281
DI-00393
DI-00283
DI-00269
DI-00284
T2
T1

DI-17
Rear Differential (VA–type)
DIFFERENTIALS
12) Tighten the self-locking nut.
Tightening torque:
70 N·m (7.1 kgf-m, 51 ft-lb)
13) Lower the transmission jack.
14) Install the air breather hose to the sub frame.
15) Install the propeller shaft.

16) Install the heat shield cover.
17) Install the rear exhaust pipe and muffler.
C: DISASSEMBLY
To detect the real cause of trouble, inspect the fol-
lowing items before disassembling.
•Tooth contact and backlash between hypoid driv-
en gear and drive pinion
•Total preload of drive pinion
1) Remove the air breather hose.
2) Set the ST on vise and install the differential as-
sembly to ST.
ST 398217700 ATTACHMENT SET
3) Drain the gear oil by removing the plug.
4) Remove the rear differential oil temperature
switch.
5) Remove the rear cover by loosening retaining
bolts.
6) Remove the lock plate RH and LH.
7) Remove the holder RH and LH with ST.
ST 18630AA010 WRENCH ASSY
8) Pull out the differential case assembly from dif-
ferential carrier.
NOTE:
Be careful so that the teeth do not to hit against the
case.
DI-00269
STDI-00363
DI-00388
DI-00364
ST
DI-00365
DI-00366

DI-18
Rear Differential (VA–type)
DIFFERENTIALS
9) Remove the bearing race from holder RH and
LH with ST and press.
ST 18758AA000 PULLER
NOTE:
•Make sure the bolt of puller turn manually.
•Set the puller so that its claws catch the groove of
holder.
10) Remove the oil seal from holder RH and LH us-
ing screwdriver.
NOTE:
Perform this operation only when changing oil seal.
11) Extract the bearing cone with ST1, ST2 and
ST3
NOTE:
•Do not attempt to disassemble the parts unless
necessary.
•Never mix up the RH and LH bearing races and
cones.
ST1 498077000 REMOVER
ST2 399520105 SEATS
ST3 899864100 REMOVER
12) Remove the hypoid driven gear by loosening
hypoid driven gear bolts.
13) Remove the self-locking nut while holding the
companion flange with ST.
ST 498427200 FLANGE WRENCH
(A) Groove
(B) Claw
(A) Holder
ST
DI-00367
ST
(A)
(B)
(A)
ST
DI-00368
DI-00369
DI-00370
ST1
ST2
ST3
DI-00371
DI-00372
ST

DI-20
Rear Differential (VA–type)
DIFFERENTIALS
1) Adjusting preload for front and rear bearings
Adjust the bearing preload between front and rear
bearings with collar and washer. Pinion height ad-
justing washer is not affected by this adjustment.
The adjustment must not be carried out with oil seal
inserted.
(1) Install the rear bearing race into the differen-
tial carrier using ST1 and ST2.
ST1 398477701 HANDLE
ST2 398477703 DRIFT 2
(2) Using the ST, install the front bearing race to
the differential carrier.
ST 499277200 INSTALLER
(3) Insert the front bearing cone.
NOTE:
Use new front bearing cone.
(4) Measure and record the thickness of pinion
adjust washer.
NOTE:
If tooth contact (drive pinion, hypoid driven gear) is
normal in the inspection before disassembling, ver-
ify that the washer is not deformed, and then re-use
the used washer.
(5) Insert the ST1 into carrier with the pinion
height adjusting washer and rear bearing cone
fitted onto it.
NOTE:
Use new rear bearing cone.
(6) Install the preload adjusting collar & washer,
front bearing cone, collar, companion flange,
and washer & self-locking nut.
ST1 18678AA000 DUMMY SHAFT
(7) Turn ST1 by hand to seat the bearing, and
measure the initial load and initial torque with a
spring scale while tightening the selflocking nut.
Select the preload adjusting washer and collar
so that the specified preload is obtained when
nut is tightened to the specified torque.
NOTE:
•Use a new self-locking nut.
•Be careful not to give excessive preload.
•When tightening the self-locking nut, lock com-
panion flange with ST2 as shown in the figure.
•Measure the preload in direction of tangent to the
flange.
ST1 18678AA000 DUMMY SHAFT
ST2 498427200 FLANGE WRENCH
Tightening torque:
191 N·m (19.5 kgf-m, 141 ft-lb)
DI-00375
ST2
ST1
DI-00376
ST
(A) Pinion height adjusting washer
(B) Preload adjusting collar
(C) Preload adjusting washer
(D) Collar
ST1DI-00377
(D)(C)(B)(A)
DI-00398
ST2