Subaru Legacy IV (2008 year). Manual - part 788

5MT-48

Reverse Check Sleeve

MANUAL TRANSMISSION AND DIFFERENTIAL

C: DISASSEMBLY

1) Cover the reverse check sleeve with a rag, and
remove the snap ring using a screwdriver.

NOTE:
Replace the snap ring with a new part if it is de-
formed or spring force is weakened.

2) Remove the reverse check plate, reverse check
spring, reverse check cam, return spring (5th-Rev),
reverse accent shaft, return spring cap and return
spring (1st-2nd).

3) Remove the O-ring.

NOTE:
• Visually check the O-ring. Replace if faulty.
• Be careful not to damage the adjusting shim be-
tween reverse check sleeve assembly and the
case.

D: ASSEMBLY

1) Install the return spring (1st-2nd), return spring
cap, reverse accent shaft, reverse check cam, re-
turn spring (5th-Rev) and reverse check spring to
the reverse check sleeve.

NOTE:
Be sure to position the bent section of reverse
check spring to fit in the groove of the check cam.

2) Hook the curved section of the reverse check
spring over the reverse check plate.
3) Rotate the cam so that the protrusion of the re-
verse check cam comes to the opening of the plate.
4) With cam held in that position, install the reverse
check plate onto the reverse check sleeve and hold
in place with the snap ring.
5) Position the new O-ring in the groove of sleeve.

(A) Snap ring

(A) Reverse check plate

(B) Reverse check spring

(C) Return spring (5th-Rev)

(D) Reverse check cam

(E) Reverse accent shaft

(F) Return spring cap

(G) Return spring (1st-2nd)

MT-00153

(A)

MT-00154

(B)

(C)

(D)

(E)

(F)

(G)

(A)

(A) Reverse check plate

(B) Reverse check spring

(C) Return spring (5th-Rev)

(D) Reverse check cam

(E) Reverse accent shaft

(F) Return spring cap

(G) Return spring (1st-2nd)

MT-00154

(B)

(C)

(D)

(E)

(F)

(G)

(A)

5MT-49

Reverse Check Sleeve

MANUAL TRANSMISSION AND DIFFERENTIAL

E: INSPECTION

• Check that the cutout of the reverse accent shaft
is aligned with the opening of the reverse check
sleeve.
• Turn the cam by hand to check for smooth rota-
tion.
• Move the cam and shaft all the way toward the
plate, and make sure it releases.
If the cam does not return properly, replace the re-
verse check spring. If the shaft does not return,
check for scratches on the inner surface of sleeve.
If the sleeve is in good order, replace the spring.

• Select a suitable reverse accent shaft and re-
verse check plate. <Ref. to 5MT-49, ADJUST-
MENT, Reverse Check Sleeve.>

F: ADJUSTMENT

1. NEUTRAL POSITION ADJUSTMENT

1) Shift the gear into 3rd gear position.
2) Because of the return spring, until the arm con-
tacts the stopper the shifter arm will feel lighter
moving towards 1st/2nd gear and heavier towards
the reverse gear.
3) Make adjustment so that the heavy stroke (re-
verse side) is a little heavier than the lighter stroke
(1st/2nd side).
4) To adjust, remove the bolts holding the reverse
check sleeve assembly to the case, and move the
sleeve assembly outward, then place an adjust-
ment shim between the sleeve assembly and the
case to adjust the clearance.

CAUTION:
Be careful not to damage the O-ring when plac-
ing shims.

NOTE:
• When the shim is removed, the neutral position
will move closer to reverse; when the shim is add-
ed, the neutral position will move closer to 1st gear.
• If it is not possible to adjust the clearance with
only shims, replace the reverse accent shaft and
re-adjust.

(A) Snap ring

(B) Reverse check plate

(C) Reverse check spring

(D) Reverse check cam

MT-00156

(A)

(D)

(B)

(C)

Adjusting shim

Part No.

Thickness mm (in)

32190AA000

0.15 (0.0059)

32190AA010

0.30 (0.0118)

Reverse accent shaft

Part number

Mark

Remarks

32188AA130

S

Neutral position is closer to 1st.

32188AA140

T

Standard

32188AA150

U

Neutral position is closer to 
reverse gear.

5MT-50

Reverse Check Sleeve

MANUAL TRANSMISSION AND DIFFERENTIAL

2. REVERSE CHECK PLATE ADJUSTMENT

1) Shift the shifter arm to “5th” and then to reverse
to see if the reverse check mechanism operates
properly.
2) Also check to see if the arm returns to neutral
when released from the reverse position. If the arm
does not return properly, replace the reverse check
plate.

Reverse check plate

Part number

(A):

No.

Angle

T

Remarks

32189AA001

0

28°

Arm stops closer to 5th gear.

32189AA011

1

31°

Arm stops closer to 5th gear.

32189AA021

2

34°

Arm stops in the center.

32189AA031

3

37°

Arm stops closer to reverse 
gear.

32189AA041

4

40°

Arm stops closer to reverse 
gear.

MT-00157

(A)

5MT-51

Transmission Case

MANUAL TRANSMISSION AND DIFFERENTIAL

14.Transmission Case

A: REMOVAL

1) Remove the manual transmission assembly
from the vehicle. <Ref. to 5MT-24, REMOVAL,
Manual Transmission Assembly.>
2) Remove the clutch release lever. <Ref. to CL-
18, REMOVAL, Release Bearing and Lever.>
3) Remove the transfer case together with the ex-
tension case assembly. <Ref. to 5MT-38, REMOV-
AL, Transfer Case and Extension Case
Assembly.>
4) Remove the bearing mounting bolt.

5) Remove the main shaft rear plate.

6) Separate the transmission case into the right
and left cases by loosening the coupling bolts and
nuts.

7) Remove the drive pinion shaft assembly from
the left side of the transmission case.

NOTE:
Use a hammer handle, etc. to remove if too tight.

8) Remove the main shaft assembly for single-
range.
9) Remove the front differential assembly. 

NOTE:
• Do not confuse the right and left roller bearing
outer races.
• Be careful not to damage the oil seal of retainer.

(A) Main shaft rear plate

MT-01514

(A)

MT-01515

MT-00160

(A) Main shaft ASSY for single-range

(B) Drive pinion shaft ASSY

MT-00161

( A )

( B )

MT-00162