Subaru Legacy IV (2008 year). Manual - part 871

 

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Subaru Legacy IV (2008 year). Manual - part 871

 

 

DI-33

Rear Differential (T-type)

DIFFERENTIALS

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: 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 propeller shaft. <Ref. to DS-11, IN-
STALLATION, Propeller Shaft.>
15) Install the heat shield cover.

16) Install the rear exhaust pipe and muffler. 
• 2.5 L SOHC non-turbo model
<Ref. to EX(H4SO)-8, INSTALLATION, Rear Ex-
haust Pipe.> <Ref. to EX(H4SO)-10, INSTALLA-
TION, Muffler.>
• 2.5 L DOHC turbo model
<Ref. to EX(H4DOTC)-13, INSTALLATION, Rear
Exhaust Pipe.> <Ref. to EX(H4DOTC)-14, IN-
STALLATION, Muffler.>
17) After installing the rear differential carrier to the
vehicle, remove the filler plug, and refill with gear oil
up to the lower lip of the plug hole.

Oil capacity:

Except for GT spec. B 6MT model:

0.8

2

 (0.8 US qt, 0.7 Imp qt)

GT spec. B 6MT model:

1.0

2

 (1.1 US qt, 0.9 Imp qt)

18) Tighten the filler plug.

NOTE:
• Apply liquid gasket to the filler plug. (Except for
GT spec. B 6MT model)

Liquid gasket:

THREE BOND 1105 (Part No. 004403010) or 
equivalent

• Use a new gasket. (GT spec. B 6MT model)

Tightening torque:

Except for GT spec. B 6MT model:

49 N·m (5.0 kgf-m, 36.1 ft-lb)

GT spec. B 6MT model:

60 N·m (6.1 kgf-m, 44.3 ft-lb)

19) Hereafter, install in the reverse order of remov-
al.

DI-00284

T2

T1

DI-00269

AT-01331

(A) Filler plug

(B) Oil drain plug

DI-00285

(A)

(B)

DI-34

Rear Differential (T-type)

DIFFERENTIALS

C: DISASSEMBLY

To detect the real cause of trouble, inspect the fol-
lowing items before disassembling.
• Tooth contact and backlash of hypoid driven
gear and drive pinion.
• Hypoid driven gear runout on its back surface
• Total preload of drive pinion
1) Set the ST on vise and install the differential as-
sembly to ST.
ST

398217700

ATTACHMENT SET

2) Remove the oil drain plug and filler plug, and
drain the gear oil.
3) Remove the air breather cap.

NOTE:
• Do not attempt to replace the air breather cap un-
less necessary.
• Whenever the air breather cap is removed, re-
place it with a new part.

4) Remove the bolts, and then remove the rear
cover.

NOTE:
Remove by tapping with a plastic hammer.

5) Keep the side retainers separate in order to eas-
ily identify RH and LH sides. Remove the side re-
tainer mounting bolts, set the ST to differential
case, and extract the side retainers RH and LH with
a puller.

NOTE:
Side retainer shim of each side should be kept to-
gether with its mating retainer.
ST

398457700

ATTACHMENT

6) Pull out the differential case assembly from dif-
ferential carrier.

NOTE:
Be careful not to hit the teeth against the case.

(A) Air breather cap

(B) Rear cover

ST

DI-00061

(A)

(B)

DI-00062

(A) Rear cover

(B) Differential carrier

(A)

(B)

DI-00063

ST

DI-00064

DI-00065

DI-35

Rear Differential (T-type)

DIFFERENTIALS

7) When replacing the side bearing, remove the
bearing cup from the side retainer using ST.
ST

398527700

PULLER ASSY

8) Remove the bearing cone with ST.

NOTE:
• Do not attempt to disassemble the parts unless
necessary.
• Set the puller so that its claws catch the edge of
the bearing cone.
• Store so that the right and left side bearing races
and cones are not mixed together.
ST

18759AA000

PULLER ASSY

9) Remove the hypoid driven gear by loosening hy-
poid driven gear bolts.

10) Drive out the pinion shaft lock pin from the hy-
poid driven gear side. (Model without LSD)

NOTE:
The lock pin is staked at the pin hole end on the dif-
ferential carrier. Do not drive it out forcibly before
removing the stake.
ST

899904100

STRAIGHT PIN REMOVER

11) Draw out the pinion mate shaft and remove pin-
ion mate gears, side gears and thrust washers.
(Model without LSD)

NOTE:
The gears should be marked or kept separated
right and left, and front and rear as well as thrust
washers.

ST

DI-00066

DI-00316

ST

DI-00068

(A) Side gear

(B) Pinion mate gear

(C) Thrust washer

(D) Differential case

(E) Pinion mate shaft

DI-00237

ST

DI-00238

DI-36

Rear Differential (T-type)

DIFFERENTIALS

12) Remove the self-locking nut while holding the
companion flange with ST.
ST

498427200

FLANGE WRENCH

13) Extract the companion flange with a puller.

14) Press the end of drive pinion shaft and extract it
together with rear bearing cone, pinion height ad-
justing washer and washer.

NOTE:
Hold the drive pinion so as not to drop it.
ST

398467700

DRIFT

15) Remove the rear bearing cone from drive pin-
ion by supporting the cone with ST.

NOTE:
Place the replacer so that its center-recessed side
faces the pinion gear.
ST

398517700

REPLACER

16) Remove the front oil seal from differential carri-
er using ST.
ST

398527700

PULLER ASSY

17) Remove the pilot bearing together with the front
bearing cone and spacer using the ST.
ST

398467700

DRIFT

(A) Companion flange

(B) PULLER

ST

DI-00071

(B)

(A)

DI-00142

ST

DI-00073

(A) Differential carrier

(B) Front oil seal

(A) Pilot bearing

(B) Spacer

(C) Front bearing

(D) Rear bearing cup

ST

DI-00074

(B)

(A)

DI-00145

ST

(B)

(A)

(C)

(D)

DI-00076

 

 

 

 

 

 

 

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