differential SUBARU LEGACY 1999 Service Repair Manual

CAUTION:
Be careful not to damage side bearing retainer.
Always use bolt as shown in figure, as support-
ing point for ST during removal.
ST 28099PA100 DRIVE SHAFT REMOVER
G4M0995
10) Remove DOJ from rear differential using tire
lever. (2200 cc AT vehicles)
NOTE:
The side spline shaft circlip comes out together
with the shaft.
G3M0257
CAUTION:
When removing the DOJ from the rear
differential, fit tire lever to the bolt as shown in
figure so as not to damage the axle shaft
holder.
G3M0045
11) Remove axle nut and drive shaft. If it is hard
to remove, use ST1 and ST2.
ST1 926470000 AXLE SHAFT PULLER
ST2 927140000 PLATE
CAUTION:
IBe careful not to damage oil seal lip when
removing rear drive shaft.
IWhen rear drive shaft is to be replaced, also
replace inner oil seal with a new one.
G4M0247
B: DISASSEMBLY
1. EXCEPT AWD AT FRONT DRIVE SHAFT
1) Remove both DOJ boot bands.
2) Loosen band by means of screwdriver or pliers
taking care to not damage the boot.
G4M0281
3) Remove the larger end of DOJ boot from DOJ
outer race.
4) Pry and remove round circlip located at the
neck of DOJ outer race with a screwdriver.
G4M0282
23
[W3B1]4-2SERVICE PROCEDURE
3. Front and Rear Drive Shafts

E: INSTALLATION
1. FRONT DRIVE SHAFT
1) Insert BJ into hub splines.
CAUTION:
Be careful not to damage inner oil seal lip.
2) Using ST1 and ST2, pull drive shaft into place.
ST1 922431000 AXLE SHAFT INSTALLER
ST2 927390000 ADAPTER
CAUTION:
Do not hammer drive shaft when installing it.
G4M0291
3) Tighten axle nut temporarily.
4) Install DOJ/SFJ on transmission spindle and
drive spring pin into place.
CAUTION:
Always use a new spring pin.
G4M0279
5) Connect transverse link to housing.
Tightening torque (self-locking nut):
49
±10 N´m (5.0±1.0 kg-m, 36±7 ft-lb)
CAUTION:
Use a new self-locking nut.
6) Install stabilizer bracket.
7) While depressing brake pedal, tighten axle nut
to the specified torque.
Tightening torque:
186
±20 N´m (19±2 kg-m, 137±14 ft-lb)
CAUTION:
IUse a new axle nut.
IAlways tighten axle nut before installing
wheel on vehicle. If wheel is installed andcomes in contact with ground when axle nut is
loose, wheel bearings may be damaged.
IBe sure to tighten axle nut to specified
torque. Do not overtighten it as this may dam-
age wheel bearing.
8) After tightening axle nut, lock it securely.
2. REAR DRIVE SHAFT
1) Insert BJ into rear housing splines.
CAUTION:
Be careful not to damage inner oil seal lip.
2) Using ST1 and ST2, pull drive shaft into place.
ST1 922431000 AXLE SHAFT INSTALLER
ST2 927390000 ADAPTER
CAUTION:
Do not hammer drive shaft when installing it.
G4M0293
3) Tighten axle nut temporarily.
4) Replace circlips from DOJ spline with new one.
(2200 cc AT vehicles only)
5) Using ST, install DOJ into differential.
ST 28099PA090 SIDE OIL SEAL PROTEC-
TOR
B4M0549A
34
4-2[W3E1]SERVICE PROCEDURE
3. Front and Rear Drive Shafts

6) Insert DOJ spline end into bore of side oil seal,
and remove ST.
CAUTION:
Do not allow DOJ splines to damage side oil
seal.
ST 28099PA090 SIDE OIL SEAL PROTEC-
TOR
B4M0550A
7) Align DOJ and differential splines.
8) Push housing to insert DOJ into differential.
NOTE:
Make sure DOJ is inserted properly.
G3M0050
9) Connect crossmember reinforcement lower to
crossmember (4 door model only).
10) Connect rear housing assembly to trailing link
assembly, and tighten self-locking nut.
Tightening torque:
11 3
±15 N´m (11.5±1.5 kg-m, 83±11 ft-lb)
11) Connect rear housing assembly to lateral link
assembly, and tighten self-locking nut.
Tightening torque:
137
±20 N´m (14±2 kg-m, 101±14 ft-lb)
12) Install stabilizer bracket.
13) While depressing brake pedal, tighten axle nut
using a socket wrench.
Tightening torque:
186
±20 N´m (19±2 kg-m, 137±14 ft-lb)
CAUTION:
IUse a new axle nut.
IAlways tighten axle nut before installing
wheel on vehicle. If wheel is installed and
comes in contact with ground when axle nut is
loose, wheel bearings may be damaged.
IBe sure to tighten axle nut to specified
torque. Do not overtighten it as this may dam-
age wheel bearing.
14) After tightening axle nut, lock it securely.
35
[W3E2]4-2SERVICE PROCEDURE
3. Front and Rear Drive Shafts

4. Replacement of Front SFJ,
DOJ and BJ Boots
A: REMOVAL
1) Disconnect ground cable from battery.
2) Jack-up vehicle, support it with safety stands
(rigid racks), and remove front wheel cap and
wheels.
NOTE:
Do not remove axle nut.
3) Remove stabilizer link.
4) Disconnect transverse link from housing.
5) Remove spring pin which secures transmission
spindle to DOJ/SFJ.
CAUTION:
Use a new spring pin.
G4M0279
6) Remove SFJ, DOJ and BJ boots from drive
shaft. <Ref. to 4-2 [W3B1].> or <Ref. to 4-2
[W3B2].>
B: INSTALLATION
1) Install SFJ, DOJ and BJ boots to drive shaft.
<Ref. to 4-2 [W3D1].> or <Ref. to 4-2 [W3D2].>
2) Install DOJ/SFJ on transmission spindle and
drive spring pin into place.
CAUTION:
Always use a new spring pin.
G4M0279
3) Connect transverse link to housing.
4) Install stabilizer link.
5. Replacement of Rear DOJ
and BJ Boots
A: REMOVAL
1) Disconnect ground cable from battery.
2) Lift-up vehicle, and remove rear wheel cap and
wheels.
NOTE:
Axle nut need not be removed.
3) Remove ABS sensor clamps and parking brake
cable bracket.
4) Disconnect stabilizer link from lateral link.
5) Remove bolts which secure lateral link assem-
bly to rear housing.
6) Remove bolts which secure trailing link assem-
bly to rear housing.
7) Remove crossmember reinforcement lower
from crossmember (4 door model only).
8) Remove DOJ from rear differential using ST.
(Except 2200 cc AT vehicles)
ST 28099PA100 DRIVE SHAFT REMOVER
CAUTION:
Do not remove circlip attached to inside of dif-
ferential.
G4M0994
CAUTION:
Be careful not to damage side bearing retainer.
Always use bolt as shown in figure, as support-
ing point for ST during removal.
ST 28099PA100 DRIVE SHAFT REMOVER
G4M0995
36
4-2[W4A0]SERVICE PROCEDURE
4. Replacement of Front SFJ, DOJ and BJ Boots

4. Replacement of Front SFJ,
DOJ and BJ Boots
A: REMOVAL
1) Disconnect ground cable from battery.
2) Jack-up vehicle, support it with safety stands
(rigid racks), and remove front wheel cap and
wheels.
NOTE:
Do not remove axle nut.
3) Remove stabilizer link.
4) Disconnect transverse link from housing.
5) Remove spring pin which secures transmission
spindle to DOJ/SFJ.
CAUTION:
Use a new spring pin.
G4M0279
6) Remove SFJ, DOJ and BJ boots from drive
shaft. <Ref. to 4-2 [W3B1].> or <Ref. to 4-2
[W3B2].>
B: INSTALLATION
1) Install SFJ, DOJ and BJ boots to drive shaft.
<Ref. to 4-2 [W3D1].> or <Ref. to 4-2 [W3D2].>
2) Install DOJ/SFJ on transmission spindle and
drive spring pin into place.
CAUTION:
Always use a new spring pin.
G4M0279
3) Connect transverse link to housing.
4) Install stabilizer link.
5. Replacement of Rear DOJ
and BJ Boots
A: REMOVAL
1) Disconnect ground cable from battery.
2) Lift-up vehicle, and remove rear wheel cap and
wheels.
NOTE:
Axle nut need not be removed.
3) Remove ABS sensor clamps and parking brake
cable bracket.
4) Disconnect stabilizer link from lateral link.
5) Remove bolts which secure lateral link assem-
bly to rear housing.
6) Remove bolts which secure trailing link assem-
bly to rear housing.
7) Remove crossmember reinforcement lower
from crossmember (4 door model only).
8) Remove DOJ from rear differential using ST.
(Except 2200 cc AT vehicles)
ST 28099PA100 DRIVE SHAFT REMOVER
CAUTION:
Do not remove circlip attached to inside of dif-
ferential.
G4M0994
CAUTION:
Be careful not to damage side bearing retainer.
Always use bolt as shown in figure, as support-
ing point for ST during removal.
ST 28099PA100 DRIVE SHAFT REMOVER
G4M0995
36
4-2[W4A0]SERVICE PROCEDURE
4. Replacement of Front SFJ, DOJ and BJ Boots

9) Remove DOJ from rear differential using tire
lever. (2200 cc AT vehicles)
NOTE:
The side spline shaft circlip comes out together
with the shaft.
G3M0257
CAUTION:
When removing the DOJ from the rear
differential, fit tire lever to the bolt as shown in
figure so as not to damage the axle shaft
holder.
G3M0045
10) Remove DOJ and BJ boots from drive shaft.
<Ref. to 4-2 [W3B3].>
B: INSTALLATION
1) Install DOJ and BJ boots to drive shaft.
<Ref. to 4-2 [W3D3].>
2) Replace circlips from DOJ spline with new one.
(2200 cc AT vehicles only)3) Using ST, install DOJ into differential.
ST 28099PA090 SIDE OIL SEAL PROTEC-
TOR
B4M0549A
4) Insert DOJ spline end into bore of side oil seal,
and remove ST.
CAUTION:
Do not allow DOJ splines to damage side oil
seal.
ST 28099PA090 SIDE OIL SEAL PROTEC-
TOR
B4M0550A
5) Align DOJ and differential splines.
6) Push housing to insert DOJ into differential.
NOTE:
Make sure DOJ is inserted properly.
G3M0050
CAUTION:
Discard old self-locking nut. Replace with a
new one.
7) Connect rear housing assembly to trailing link
assembly, and tighten self-locking nut.
8) Connect rear housing assembly to lateral link
37
[W5B0]4-2SERVICE PROCEDURE
5. Replacement of Rear DOJ and BJ Boots

4) Install front ABS sensor on strut and wheel
apron bracket.
Tightening torque:
32
±10 N´m (3.3±1.0 kg-m, 24±7 ft-lb)
B4M1181A
5) Place a thickness gauge between ABS sensor's
pole piece and tone wheel's tooth face. After stan-
dard clearance is obtained over the entire
perimeter, tighten ABS sensor on housing to speci-
fied torque.
ABS sensor standard clearance:
0.9 Ð 1.4 mm (0.035 Ð 0.055 in)
Tightening torque:
32
±10 N´m (3.3±1.0 kg-m, 24±7 ft-lb)
CAUTION:
Check the marks on the harness to make sure
that no distortion exists. (RH: white, LH: yel-
low)
NOTE:
If the clearance is outside specifications, readjust.
2. REAR ABS SENSOR
1) Install rear tone wheel on hub, then rear hous-
ing on hub. <Ref. to 4-2 [W2D0].>
2) Temporarily install rear ABS sensor on back
plate.
CAUTION:
Be careful not to strike ABS sensor's pole
piece and tone wheel's teeth against adjacent
metal parts during installation.
B4M1182A
3) Install rear drive shaft to rear housing and rear
differential spindle. <Ref. to 4-2 [W2E0].>4) Install rear sensor harness on rear trailing link.
Tightening torque:
32
±10 N´m (3.3±1.0 kg-m, 24±7 ft-lb)
G4M0453
5) Place a thickness gauge between ABS sensor's
pole piece and tone wheel's tooth face. After stan-
dard clearance is obtained over the entire
perimeter, tighten ABS sensor on back plate to
specified torque.
ABS sensor standard clearance:
0.7 Ð 1.2 mm (0.028 Ð 0.047 in)
Tightening torque:
32
±10 N´m (3.3±1.0 kg-m, 24±7 ft-lb)
CAUTION:
Check the marks on the harness to make sure
that no distortion exists. (RH: white, LH: yel-
low)
NOTE:
If the clearance is outside specifications, readjust.
54
4-4[W14C2]SERVICE PROCEDURE
14. ABS Sensor