Mitsubishi Galant. Manual - part 474

DIFFERENTIAL

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-65

Required Special Tools:
MD998801: Bearing Remover

MD998812: Installer Cap
MD998820: Installer Adapter (42)

DISASSEMBLY SERVICE POINT

<<A>> TAPER ROLLER BEARING REMOVAL
1. Support the taper roller bearing with special tool MD998801, 

and then set them on the press.

2. Push down on the differential case with the press to remove 

the bearing.

ASSEMBLY SERVICE POINTS

>>A<< SPACER, SIDE GEAR, WASHER, PINION AND 
PINION SHAFT INSTALLATION
1. Mount a spacer on the back surface of the side gear, and 

then install the side gear in the differential case.

NOTE: When a new side gear is to be installed, mount a 
medium thickness spacer [0.93 to 1.00 mm (0.0366 to 
0.0395 inch)].

2. Set the washer on the back of each pinion, and put both 

pinions simultaneously in mesh with the side gears. While 
rotating them, install them into position.

3. Insert the pinion shaft.

>>A<<

6.

WASHERS

>>A<<

7.

SIDE GEARS

>>A<<

8.

SPACERS

9.

DIFFERENTIAL CASE

DISASSEMBLY STEPS (Continued)

AKX01140

MD998801

AB

AKX00957

AKX00959

DIFFERENTIAL

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-66

4. Measure the backlash between the side gear and pinion.

Standard value: 
0.025 

−−−−

 0.150 mm (0.0010 - 0.0059 inch)

5. If the backlash is out of the standard value, select a spacer 

and re-measure the backlash.

NOTE: Adjust until the backlashes on both sides are equal.

>>B<< LOCK PIN INSTALLATION
Install the lock pin so that it will be oriented in the direction 
shown.

>>C<< TAPER ROLLER BEARING INSTALLATION
Using special tools MD998812 and MD998820, press install 
the taper roller bearing with the press.

AKX01143

AKX01141

PINION SHAFT

DIFFERENTIAL CASE

LOCK PIN

AB

AKX00964

MD998812

MD998820

TAPER ROLLER 
BEARING

AB

DIFFERENTIAL

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-67

>>D<< DIFFERENTIAL DRIVE GEAR INSTALLATION
Apply ATF to the bolt, and then tighten the bolts to the specified 
torque in the shown sequence.

Tightening torque: 132 

±±±±

 5 N

⋅⋅⋅⋅

m (98 

±±±±

 4 ft-lb)

AKX01099

<F4A42>

2

7

5

3

1

8

6

4

AB

AKX01142

AKX01142

<F4A51>

AB

2

9

4

8

6

10

1

3

5

7

VALVE BODY

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-68

VA LVE B O D Y

DISASSEMBLY AND ASSEMBLY

M1233005500031

AKX01001

13

18

16

17

15

12

11

10

11

7

5

6

9

2

3

4

8

1

1

14

19

20

6  N·m
52 in-lb

11  N·m
95  in-lb

APPLY AUTOMATIC 
TRANSMISSION FLUID 
TO ALL MOVING PARTS 
BEFORE INSTALLATION.

AC

AKX01001

11  N·m
95  in-lb

6  N·m
52 in-lb

6  N·m
52 in-lb

DISASSEMBLY STEPS
1.

SOLENOID VALVE SUPPORT

<<A>>

>>C<<

2.

UNDERDRIVE SOLENOID VALVE

<<A>>

>>C<<

3.

SECOND SOLENOID VALVE

<<A>>

>>C<<

4.

TORQUE CONVERTER CLUTCH 
CONTROL SOLENOID VALVE

<<A>>

>>C<<

5.

OVERDRIVE SOLENOID VALVE

<<A>>

>>C<<

6.

LOW-REVERSE SOLENOID 
VALVE

7.

MANUAL VALVE

8.

COVER

9.

PLATE

10. OUTSIDE VALVE BODY 

ASSEMBLY

>>B<<

11. STEEL BALL (ORIFICE CHECK 

BALL)

>>B<<

12. SPRING
13. PLATE

>>A<<

14. DAMPING VALVE

>>A<<

15. DAMPING VALVE SPRING

>>A<<

16. STEEL BALL (LINE RELIEF)

>>A<<

17. SPRING

>>A<<

18. STEEL BALL (ORIFICE CHECK 

BALL)

>>A<<

19. SPRING
20. INSIDE VALVE BODY ASSEMBLY

DISASSEMBLY STEPS (Continued)