1996 SUBARU LEGACY differential

G4M0544
5) Place transmission jack under rear crossmember.
G4M0545
6) Remove bolts securing crossmember to vehicle body,
and remove crossmember.
7) Scribe an alignment mark on rear lateral link cam bolt
and crossmember.
8) Remove four bolts securing front and rear lateral links
to crossmember by loosening nuts.
B: INSPECTION
Check removed parts for damage and cracks, and correct
or replace if defective.
C: INSTALLATION
1) Install in reverse order of removal.
2) For installation and tightening torque of rear differential,
refer to 3-4 [W2F0].
CAUTION:
Always tighten rubber bushing when wheels are in full
contact with the ground and vehicle is at curb weight
condition.
NOTE:
Check wheel alignment and adjust if necessary.
46
4-1SERVICE PROCEDURE
11. Rear Crossmember (AWD Model)

G4M0216
8) Remove front drive shaft assembly. If it is hard to
remove, use ST1 and ST2.
ST1 926470000 AXLE SHAFT PULLER
ST2 927140000 PLATE
CAUTION:
Be careful not to damage oil seal lip when removing
front drive shaft.
When front drive shaft is to be replaced, also replace
inner oil seal.
2. REAR DRIVE SHAFT
1) Disconnect ground cable from battery.
2) Lift-up vehicle, and remove rear wheel cap and wheels.
CAUTION:
Be sure to loosen and retighten axle nut after remov-
ing wheel from vehicle. Failure to follow this rule may
damage wheel bearings.
3) Unlock axle nut.
4) Loosen axle nut using a socket wrench.
CAUTION:
Do not remove axle nut.
5) Remove A.B.S. sensor clamps and parking brake cable
bracket.
6) Remove bolts which secure lateral link assembly to rear
housing.
CAUTION:
Discard old self-locking nut. Replace with a new one.
7) Remove bolts which secure trailing link assembly to
rear housing.
CAUTION:
Discard old self-locking nut. Replace with a new one.
8) Remove crossmember reinforcement lower from cross-
member (4 door model only).
G4M0994
9) Remove DOJ from rear differential using ST.
ST 28099PA100 DRIVE SHAFT REMOVER
CAUTION:
Do not remove circlip attached to inside of differential.
29
4-2SERVICE PROCEDURE
4. Front and Rear Drive Shafts

G4M0279
4) Install DOJ on transmission spindle and drive spring pin
into place.
CAUTION:
Always use a new spring pin.
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:
Use a new axle nut.
Always 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.
Be sure to tighten axle nut to specified torque. Do
not overtighten it as this may damage wheel bearing.
8) After tightening axle nut, lock it securely.
G4M0293
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.
3) Tighten axle nut temporarily.
B4M0549A
4) Using ST, install DOJ into differential.
ST 28099PA090 SIDE OIL SEAL PROTECTOR
44
4-2SERVICE PROCEDURE
4. Front and Rear Drive Shafts

B4M0550A
5) 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 PROTECTOR
G3M0050
6) Align DOJ and differential splines.
7) Push housing to insert DOJ into differential.
NOTE:
Make sure DOJ is inserted properly.
8) Connect crossmember reinforcement lower to cross-
member (4 door model only).
9) Connect rear housing assembly to trailing link
assembly, and tighten self-locking nut.
Tightening torque:
113±15 N⋅m (11.5±1.5 kg-m, 83±11 ft-lb)
10) 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)
11) Install stabilizer bracket.
12) 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:
Use a new axle nut.
Always 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.
Be sure to tighten axle nut to specified torque. Do
not overtighten it as this may damage wheel bearing.
13) After tightening axle nut, lock it securely.
45
4-2SERVICE PROCEDURE
4. Front and Rear Drive Shafts

6. 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 A.B.S. sensor clamps and parking brake cable
bracket.
4) Disconnect stabilizer link from lateral link.
5) Remove bolts which secure lateral link assembly to rear
housing.
6) Remove bolts which secure trailing link assembly to
rear housing.
7) Remove crossmember reinforcement lower from cross-
member (4 door model only).
G4M0994
8) Remove DOJ from rear differential using ST.
ST 28099PA100 DRIVE SHAFT REMOVER
NOTE:
The side spline shaft circlip comes out together with the
shaft.
G4M0995
CAUTION:
Be careful not to damage side bearing retainer. Always
use bolt as shown in figure, as supporting point for ST
during removal.
ST 28099PA100 DRIVE SHAFT REMOVER
B: INSTALLATION
1) Install DOJ and BJ boots to drive shaft.

47
4-2SERVICE PROCEDURE
6. Replacement of Rear DOJ and BJ Boots

B4M0549A
2) Using ST, install DOJ into differential.
ST 28099PA090 SIDE OIL SEAL PROTECTOR
B4M0550A
3) 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 PROTECTOR
G3M0050
4) Align DOJ and differential splines.
5) Push housing to insert DOJ into differential.
NOTE:
Make sure DOJ is inserted properly.
CAUTION:
Discard old self-locking nut. Replace with a new one.
6) Connect rear housing assembly to trailing link
assembly, and tighten self-locking nut.
7) Connect rear housing assembly to lateral link assembly,
and tighten self-locking nut.
8) Connect stabilizer link to lateral link.
9) Install crossmember reinforcement lower to crossmem-
ber (4 door model only).
10) Install A.B.S. sensor clamps and parking brake cable
bracket.
48
4-2SERVICE PROCEDURE
6. Replacement of Rear DOJ and BJ Boots

1. BASIC CHECK ITEMS FOR AT
When trouble code about automatic transmission is shown
on display, carry out the following basic check. After that,
carry out the replacement or repair work.
1) ATF level check
2) Differential gear oil level check
3) ATF leak check
4) Differential gear oil leak check
5) Brake band adjustment
6) Stall test
7) Line pressure test
8) Transfer clutch pressure test
9) Time lag test
10) Road test
11) Shift characteristics
NOTE:
As for the method, refer to 3-2 [W2A0], [W2B1], [W300].
76
2-7ON-BOARD DIAGNOSTICS II SYSTEM
6. Basic Diagnostics Procedure

Overrunning clutch
Drive pinion
Crown gear
Axle shaft
Differential gear
Final gear
Seal pipe
Oil pump
High clutch
Band brake
Low & reverse clutch
Reverse clutch
One-way clutch (1-2)
One-way clutch (3-4)
Double oil seal
Input shaft
Output shaft
Planetary gear
Reduction gear
Drive plate
Torque converter one-way clutch
Lock-up facing
Lock-up damper
ATF deterioration
ATF level too high or too low
Differential gear oil level too high or too low
Engine performance
Engine speed signal
Parking brake mechanism
Problem parts
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Symptom
Starter does not rotate when select lever is
in“P”or“N.”; starter rotates when select
lever is“R”,“D”,“3”or“2.”
Abnormal noise when select lever is in“P”or
“N.”
Hissing noise occurs during standing starts.
Noise occurs while driving in“D
1”range.
Noise occurs while driving in“D
2”range.
Noise occurs while driving in“D
3”range.
Noise occurs while driving in“D
4”range.
Engine stalls while shifting from one range to
another.
Vehicle moves when select lever is in“N.”
Shock occurs when select lever is moved
from“N”to“D.”
Excessive time lag occurs when select lever
is moved from“N”to“D.”
Shock occurs when select lever is moved
from“N”to“R.”
Excessive time lag occurs when select lever
is moved from“N”to“R.”
    Vehicle does not start in any shift range
(engine revving up).
Vehicle does not start in any shift range
(engine stall).
Vehicle does not start in“R”range only
(engine revving up).
Vehicle does not start in“R”range only
(engine stall).
Vehicle does not start in“D”or“3”range
(engine revving up).
Vehicle does not start in“D”,“3”or“2”range
(engine revving up).
Vehicle does not start in“D”,“3”or“2”range
(engine stall).
Vehicle starts in“R”range only (engine rev-
ving up).
Acceleration during standing starts is poor
(high stall rpm).
Acceleration during standing starts is poor
(low stall rpm).
 Acceleration is poor when select lever is in
“D”,“3”or“2”range (normal stall rpm).
Acceleration is poor when select lever is in
“R”(normal stall rpm).
No shift occurs from 1st to 2nd gear.
No shift occurs from 2nd to 3rd gear.
No shift occurs from 3rd to 4th gear.
No“kick-down”shifts occur.
Engine brake is not effected when select
lever is in“3”range.
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
120
2-7ON-BOARD DIAGNOSTICS II SYSTEM
9. General Diagnostics Table