diff SUBARU TRIBECA 2009 1.G Service Repair Manual

DI-30
Rear Differential Front Oil Seal
DIFFERENTIALS
5. Rear Differential Front Oil
Seal
A: INSPECTION
Make sure that there is no leakage from front oil
seal portion. If there is any leakage replace the oil
seal and inspect the propeller shaft.
B: REPLACEMENT
1) Release the parking brake.
2) Remove the oil drain plug, and drain gear oil.
3) Install the oil drain plug.
NOTE:
Use a new metal gasket.
Tightening torque:
29 N·m (3.0 kgf-m, 21.7 ft-lb)
4) Jack-up the rear wheel and support the body
with rigid racks.
5) Remove the rear exhaust pipe and muffler.
6) Remove the heat shield cover.
7) Remove the propeller shaft. MOVAL, Propeller Shaft.>
8) Remove the self-locking nut while holding the
companion flange with ST.
ST 498427200 FLANGE WRENCH
9) Extract the companion flange using ST.
ST 399703600 PULLER ASSY
10) Remove the oil seal using ST or screwdriver.
ST 398527700 PULLER ASSY
11) Install a new oil seal with ST.
ST 498447120 OIL SEAL INSTALLER
(A) Filler plug
(B) Drain plug
(A)
DI-00357
(B)
AT-03243
DI-00194
ST
DI-00196
ST
DI-00197
ST
DI-00292
ST

DI-31
Rear Differential Front Oil Seal
DIFFERENTIALS
12) Install the companion flange.
NOTE:
Use a plastic hammer to install companion flange.
13) Apply Lock Tite to the drive pinion shaft screw
threads and the nut seat surface.
Lock Tite:
THREE BOND 1324 (Part No. 004403042)
14) Tighten the self-locking nut within the specified
torque range so that the rotating resistance of com-
panion flange becomes the same as that of before
oil seal replacement.
ST 498427200 FLANGE WRENCH
NOTE:
Use a new self-locking nut.
Tightening torque:
191 N·m (19.5 kgf-m, 141 ft-lb)
15) Hereafter, reassemble in the reverse order of
disassembly.
DI-00194
ST

DI-32
Rear Differential Side Oil Seal
DIFFERENTIALS
6. Rear Differential Side Oil Seal
A: INSPECTION
Make sure that there is no leakage from side oil
seal. If there is any leakage, replace the oil seal.
B: REPLACEMENT
1) Remove the rear differential. MOVAL, Rear Differential (VA–type).>
2) Remove the rear differential side oil seal using a
screwdriver wrapped with vinyl tape to prevent the
side retainer from scratches.
3) Using the ST, install the oil seal to the side re-
tainer.
ST 398437700 DRIFT
4) Install the rear differential. STALLATION, Rear Differential (VA–type).>
ST
DI-00209

DI-33
Rear Differential Front Member
DIFFERENTIALS
7. Rear Differential Front Mem-
ber
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Jack-up the vehicle.
3) Support the rear differential using transmission
jack, and then remove the rear differential front
member.
B: INSTALLATION
Using new self-locking nuts, install the rear differ-
ential front member.
Tightening torque:
T1: 65 N·m (6.6 kgf-m, 48 ft-lb)
T2: 110 N·m (11.2 kgf-m, 81 ft-lb)
C: INSPECTION
1) Check the rear differential front member for
damage, bend and corrosion.
If damage, bend or corrosion is excessive, replace
the rear differential front member.
2) Check the bushings of rear differential member
for cracking, hardening and damage.
If cracking, hardening or damage is excessive, re-
place rear differential front member.
(A) Rear differential front member
DI-00293(A)
DI-00294
T2
T1

DI-34
General Diagnostic Table
DIFFERENTIALS
8. General Diagnostic Table
A: INSPECTION
Symptom or trouble Possible cause Remedy
1. Oil leakage(1) Worn, scratched, or incorrectly seated
front or side oil seal. Scored, battered or
excessively wor n sliding surface of com-
panion flange.
Correct or replace.
(2) Clogged or damaged air breather. Clean, repair or replace.
(3) Loose bolts on differential spindle or
side retainer, or incorrectly fitted O-ring.
Tighten the bolts to specified torque.
Replace the O-ring.
(4) Loose rear cover attaching bolts or
damaged gasket.
Tighten the bolts to specified torque.
Replace gasket and apply liquid gasket.
(5) Loose oil filler or drain plug. Retighten and apply liquid gasket.
(6) Wear, damage or incorrect fitting of
spindle, side retainer or oil seal.
Correct or replace.
2. Seizure
NOTE:Seized or damaged parts should be re-
placed, and also other parts should be thor-
oughly checked for any defect and should
be repaired or replaced as required.
(1) Insufficient backlash for hypoid gear. Readjust or replace.
(2) Excessive preload for side, rear or
front bearing.
Readjust or replace.
(3) Insufficient or improper oil used. Replace seized part and fill with speci-
fied oil to specified level.
3. Damage
NOTE:Damaged parts should be replaced, and
also other parts should be thoroughly
checked for any defect and should be re-
paired or replaced as required.
(1) Improper backlash for hypoid gear. Replace.
(2) Insufficient or excessive preload for
side, rear or front bearing.
Readjust or replace.
(3) Excessive backlash for differential
gear.
Replace gear or thrust washer.
(4) Loose bolts and nuts such as hypoid
driven gear bolt
Retighten.
(5) Damage due to overloading. Replace.
4. Noises when starting or shifting
gears
NOTE:
Noises may be caused by differential as-
sembly, universal joint, wheel bearing, etc.
Find out what is actually making noise be-
fore disassembling.
(1) Excessive backlash for hypoid gear. Readjust.
(2) Excessive backlash for differential
gear.
Replace the differential case assembly.
(3) Insufficient preload for front or rear
bearing.
Readjust.
(4) Loose drive pinion nut. Tighten to the specified torque.
(5) Loose bolts and nuts such as side
bearing retainer attaching bolt.
Tighten to the specified torque.
5. Noises when cornering(1) Damaged differential gear. Replace the differential case assembly.
(2) Excessive wear or damage of thrust
washer.
Replace the differential case assembly.
(3) Broken pinion mate shaft. Replace the differential case assembly.
(4) Seized or damaged side bearing. Replace.
6. Gear Noise
NOTE:
Since noises from engine, muffler, trans-
mission, propeller shaft, wheel bearings,
tires, and body are sometimes mistaken for
noises from differential assembly, be care-
ful in checking them. Inspection methods to
locate noises include coasting, accelerat-
ing, cruising, and jacking-up all four wheels.
Perform these inspections according to the
condition of trouble. When listening to nois-
es, shift gears into four wheel drive and
fourth speed position, trying to pick up only
differential noise.
(1) Improper tooth contact of hypoid gear. Readjust or replace hypoid gear set.
(2) Improper backlash of the hypoid gear. Readjust.
(3) Scored or chipped teeth of hypoid
gear.
Replace hypoid gear set.
(4) Seized hypoid gear. Replace hypoid gear set.
(5) Improper preload for front or rear
bearings.
Readjust.
(6) Seized, cut-away or chipped front or
rear bearing.
Replace.
(7) Seized, cut-away or chipped side
bearing.
Replace.
(8) Differential carrier is vibrating. Replace the differential case assembly.

DS-4
General Description
DRIVE SHAFT SYSTEM
B: COMPONENT
1. PROPELLER SHAFT
(1) Propeller shaft Tightening torque: N·m (kgf-m, ft-lb)
(2) Bushing T1: 31 (3.2, 23.1)
(3) Rear differential (VA2-type) T2: 52 (5.3, 38.3)
DS-00353
(2)
(2)
T2
(1)
(3)
T1

DS-8
General Description
DRIVE SHAFT SYSTEM
D: PREPARATION TOOL
1. SPECIAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
925091000 BAND TIGHTENING
TOOL
Used for tightening the boot band.
(A) Jig for the band
(B) Ratchet wrench
926470000 AXLE SHAFT
PULLER
Used for removing the axle shaft.
18675AA000 DIFFERENTIAL
SIDE OIL SEAL
INSTALLER
Used for installing the differential side retainer oil
seal.
28099PA080 HUB STAND Used for assembling hub bolt in hub.
ST-925091000
(A)
(B)
ST-926470000
ST18675AA000
ST28099PA080

DS-9
General Description
DRIVE SHAFT SYSTEM
2. GENERAL TOOL
28099PA110 AXLE SHAFT
PULLER PLATE
Same as plate 2 included in AXLE SHAFT
PULLER (926470000).
28099PA090 OIL SEAL PROTEC-
TOR
•Used for installing the rear drive shaft to the
rear differential.
•For protecting the oil seal.
28399SA010 OIL SEAL PROTEC-
TOR
•Used for installing front drive shaft into front
differential.
•For protecting the oil seal.
28399AG000
(Newly adopted tool)
HUB STAND Used for extracting hub bolt.
DESCRIPTION REMARKS
Puller Used for removing the ball joint from knuckle arm.
Dial gauge Used for inspecting the propeller shaft run–out.
Extension cap Used for preventing leakage of gear oil or ATF.
Bar Used for extracting drive shaft.
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST28099PA110
ST28099PA090
ST28399SA010
ST28399AG000

DS-10
Propeller Shaft
DRIVE SHAFT SYSTEM
2. Propeller Shaft
A: REMOVAL
NOTE:
•Before removing propeller shaft, wrap metal
parts with a cloth or rubber material.
•In case of EDJ type, wrap the metal parts at the
rubber boot at the center EDJ with a cloth or rubber
material before removing propeller shaft, as shown
in the figure. The rubber boot may be damaged due
to interference with adjacent metal parts while
bending the EDJ during removal.
1) Disconnect the ground cable from the battery.
2) Shift the select lever or gear shift lever to neutral.
3) Release the parking brake.
4) Lift-up the vehicle.
5) Remove the center exhaust pipe.
6) Remove the rear exhaust pipe and muffler.
7) Remove the heat shield cover.
8) Make matching marks on the flange yoke and
rear differential before removal.
9) Remove the three bolts holding the propeller
shaft to the rear differential.
10) Remove the remaining bolt.
11) Remove the two bolts which hold center bear-
ing to vehicle body.
12) Remove the propeller shaft from transmission.
CAUTION:
•Be careful not to damage oil seals and fric-
tional surface of the sleeve yoke.
•Cover the center exhaust pipe with a cloth to
keep off any ATF or oil spilled from transmis-
sion when removing propeller shaft.
NOTE:
Use a container to catch ATF or oil flowing from
propeller shaft.(A) Heat shield cover
DS-00239
DS-00355(A)
(A) Alignment mark
DS-00028
(A)
DS-00141
DS-00030

DS-11
Propeller Shaft
DRIVE SHAFT SYSTEM
13) Install an extension cap to the transmission.
NOTE:
If extension cap is not available, place vinyl bag
over opening and fasten with string to prevent gear
oil or ATF from leaking.
B: INSTALLATION
1) Insert the sleeve yoke into the transmission and
attach center bearing to body.
Tightening torque:
52 N·m (5.3 kgf-m, 38.3 ft-lb)
2) Align the matching marks and connect the flange
yoke and rear differential.
Tightening torque:
31 N·m (3.2 kgf-m, 23.1 ft-lb)
3) Install the heat shield cover.
4) Install the center exhaust pipe.
5) Install the rear exhaust pipe and muffler.
6) Lower the vehicle.
7) Connect the ground cable to the battery.
C: INSPECTION
NOTE:
Do not disassemble propeller shaft. Check the fol-
lowing and replace if necessary.
•Tube surface for dents of cracks
•Splines for deformation or abnormal wear
•Unsmooth joint operation or abnormal noise
•Center bearing for free play, noise or non-
smooth operation.
•Oil seals for abnormal wear or damage
•Damaged center bearing
Check the following points with propeller shaft in-
stalled in vehicle.
1. JOINTS AND CONNECTIONS
1) Remove the center exhaust pipe.
2) Remove the heat shield cover.
3) Check for any looseness of the yoke flange
mounting bolts which connect to the rear differen-
tial and center bearing bracket mounting bolts.
2. SPLINES AND BEARING
1) Remove the center exhaust pipe.
2) Remove the rear exhaust pipe and muffler.
3) Remove the heat shield cover.
4) Turn the propeller shaft by hand to see if abnor-
mal free play exists at splines. Also move yokes to
see if abnormal free play exists at spiders and
bearings.
(A) Extension cap
(A) Alignment mark
DS-00031
(A)
DS-00141
DS-00028
(A)
DS-00035