Subaru Legacy IV (2008 year). Manual - part 743

5AT-96

Front Differential Assembly

AUTOMATIC TRANSMISSION

F: ADJUSTMENT

1) Using the ST, screw-in the retainer until resis-
tance is felt.

NOTE:
Screw in the RH side slightly deeper than the LH
side.
ST

18630AA010

WRENCH COMPL RETAINER

2) Remove the oil pump cover.
3) Remove the liquid gasket from the mating sur-
face completely.
4) Install the oil pump cover to converter case, and
secure them with tightening four bolts evenly.

NOTE:
Use an old gasket or aluminum washer to prevent
damaging the mating surface of the housing.

Tightening torque:

41 N·m (4.2 kgf-m, 30.2 ft-lb)

5) Rotate the drive pinion ten times or more using
ST1 and ST2.
ST1

18667AA010

HOLDER

ST2

499787700

WRENCH

6) Tighten the LH retainer by rotating the shaft until
resistance is felt. Then loosen the retainer RH.
Keep tightening the retainer LH, and loosening the
retainer RH until the pinion shaft no longer be
turned. This is the “zero” state.

7) After the “zero” state is established, loosen the
retainer LH by 3 notches and secure it with the lock
plate. Then loosen the retainer RH and retighten
until it stops. Rotate the drive pinion 2 or 3 times.
Tighten the retainer RH further 1-3/4 notches. This
sets the preload. Finally, secure the retainer with its
lock plate.

NOTE:
Turning the retainer by one tooth changes the
backlash approx. 0.05 mm (0.0020 in).

AT-00227

ST

AT-01985

ST2

ST1

(A) Retainer

(A) Lock plate

(A) 0.05 mm (0.0020 in)

AT-01986

(A)

AT-01988

(A)

AT-01989

(A)

5AT-97

Front Differential Assembly

AUTOMATIC TRANSMISSION

8) Turn the drive pinion several times using ST1,
and check to see if the backlash is within the spec-
ification using ST2, ST3, ST4 and ST5.
ST1

499787700

WRENCH

ST2

498247001

MAGNET BASE

ST3

498247100

DIAL GAUGE

ST4

499787500

ADAPTER

ST5

498255400

PLATE

Backlash:

0.13 — 0.18 mm (0.0051 — 0.0071 in)

9) Adjust the teeth contact of the front differential
and drive shaft. <Ref. to 5AT-90, ADJUSTMENT,
Drive Pinion Shaft Assembly.>

5AT-98

AT Main Case

AUTOMATIC TRANSMISSION

35.AT Main Case

A: REMOVAL

1) Remove the transmission assembly from vehicle
body. <Ref. to 5AT-39, REMOVAL, Automatic
Transmission Assembly.>
2) Pull out the torque converter assembly. <Ref. to
5AT-67, REMOVAL, Torque Converter Assembly.>
3) Remove the transmission harness connector
from stay.
4) Disconnect the air breather hose. <Ref. to 5AT-
65, REMOVAL, Air Breather Hose.>
5) Remove the oil charge pipe. <Ref. to 5AT-66,
REMOVAL, Oil Charge Pipe.>
6) Remove the ATF inlet and outlet pipes. <Ref. to
5AT-62, REMOVAL, ATF Cooler Pipe and Hose.>
7) Remove the extension case. <Ref. to 5AT-68,
REMOVAL, Extension Case.>
8) Remove the center differential carrier. <Ref. to
5AT-77, REMOVAL, Center Differential Carrier.>
9) Remove the reduction driven gear. <Ref. to 5AT-
74, REMOVAL, Reduction Driven Gear.>
10) Separate the converter case from the transmis-
sion case. <Ref. to 5AT-81, REMOVAL, Converter
Case.>
11) Remove the control valve body. <Ref. to 5AT-
57, REMOVAL, Control Valve Body.>
12) Remove the oil pump cover. <Ref. to 5AT-83,
REMOVAL, Oil Pump Cover.>

NOTE:
The input clutch pack assembly and front sun gear
assembly are also removed together.

13) Remove the needle bearing of the middle carri-
er assembly.

14) Remove the middle carrier assembly.

15) Remove the rear carrier assembly.

AT-01990

AT-01991

AT-01992

AT-01993

5AT-99

AT Main Case

AUTOMATIC TRANSMISSION

16) Remove the middle & rear sun gear assembly.

17) Remove the thrust needle bearing of high & low
reverse clutch.

18) Remove the high & low reverse clutch assem-
bly.

19) Remove the direct clutch assembly.

20) Remove the snap ring of reverse brake.

21) Remove the retaining plate.
22) Remove the leaf spring.

23) Take out the drive plate, driven plate and dish
plate.

AT-01994

AT-01995

AT-01996

(A) Leaf spring

AT-01997

AT-01998

B '

B

B '

B

(A)

(A)

AT-03364