Mitsubishi Galant (2004+). Manual - part 1643

UNDERDRIVE CLUTCH AND INPUT SHAFT

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-61

DISASSEMBLY SERVICE POINT

.

<<A>> SNAP RING REMOVAL
1. Set special tools MD998907 and MD998924 as shown in the 

illustration.

2. Compress the return spring and remove the snap ring.

ASSEMBLY SERVICE POINTS

.

>>A<< D-RING INSTALLATION
1. Install a D-ring in the groove in the underdrive clutch retainer 

and piston, and in the groove in the outside of the spring 
retainer. Be careful not to twist or damage the D-rings.

2. Apply ATF or petroleum jelly (Vaseline) to the D-rings.

.

>>B<< SNAP RING INSTALLATION
1. Place the snap ring on top of the spring retainer, and then 

set special tool MD998907 and MD998924 as shown in the 
illustration.

2. Compress the return spring and install the snap ring.

.

>>C<< CLUTCH PLATE/CLUTCH DISC/CLUTCH REACTION 
PLATE INSTALLATION

CAUTION

Immerse the clutch disc in ATF before assembling it. If the 
clutch disc is new, soak it in ATF for at least two hours.
1. Assemble the four clutch plates and four clutch discs one on 

top of the other inside the underdrive clutch retainer. All four 
clutch plates should be assembled so that the places with no 
teeth (marked "A") are aligned with the holes in the retainer 
(marked "B").

AK300523AD

MD998907

MD998924

AK300523AD

MD998907

MD998924

AK301272AC

A

B

REVERSE AND OVERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-62

2. Install the clutch reaction plate in the direction shown.

Install it the same as the clutch plates, so that the areas with 
no teeth (marked "A") are aligned with the retainer (marked 
"B").

.

>>D<< SNAP RING INSTALLATION
1. Install the snap ring into the groove of clutch retainer.
2. Set special tools MB991628 <F4A4B> or MB991629 

<F4A5A> and MD998924 as shown in the illustration, and 
then compress the clutch element.

3. Check that the clearance between the snap ring and the 

clutch reaction plate is within the standard value. If not within 
the standard value, select a snap ring to achieve the 
standard value clearance.

Standard value: 1.60 

− 1.80 mm (0.0630 − 0.0709 inch)

REVERSE AND OVERDRIVE CLUTCH

DISASSEMBLY AND ASSEMBLY

M1233024800149

NUMBER OF CLUTCH DISCS AND PLATES

AK301764

CLUTCH PLATES

ROUNDED EDGE

PISTON 
SIDE

CLUTCH DISCS

AB

CLUTCH 
REACTION 
PLATE

AK300524AE

MD998924

MB991628

<F4A4B>

AK202311

MB991629

MD998924

AC

<F4A5A>

MODEL

PRESSURE 
PLATE

CLUTCH DISC

CLUTCH PLATE CLUTCH 

REACTION 
PLATE

Over drive clutch

F4A4B

−

4

4

1

F4A5A

1

4

3

1

Reverse clutch

−

2

2

1

REVERSE AND OVERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-63

<F4A4B>

AK301601

16

19

18

17

16

15

13

12

11

10

9

14

18

17

12

15

13

19

9

10

14

11

7

3

5

8

6

4

2

1

1 2

4

5

6

8

7

3

AB

APPLY AUTOMATIC
TRANSMISSION FLUID
TO ALL MOVING PARTS
BEFORE INSTALLATION.

DISASSEMBLY STEPS

>>G<<

1.

SNAP RING

>>F<<

2.

CLUTCH REACTION PLATE

>>F<<

3.

CLUTCH DISC

>>F<<

4.

CLUTCH PLATE

>>E<<

5.

SNAP RING

>>D<<

6.

CLUTCH REACTION PLATE

>>D<<

7.

CLUTCH DISC

>>D<<

8.

CLUTCH PLATE

<<A>>

>>C<<

9.

SNAP RING

10. SPRING RETAINER

>>A<<

11. D-RING
12. RETURN SPRING
13. OVERDRIVE CLUTCH PISTON

>>A<<

14. D-RING

>>B<<

15. REVERSE CLUTCH PISTON

>>A<<

16. D-RING

>>A<<

17. D-RING

>>A<<

18. D-RING
19. REVERSE CLUTCH RETAINER

DISASSEMBLY STEPS 

REVERSE AND OVERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-64

<F4A5A>

Required Special Tools:

• MB991628: Spring Compressor

• MB991629: Spring Compressor

• MB991789: Spring Compressor

• MB991790: Spring Compressor

• MD998924: Spring Compressor Retainer

• MD999590: Spring Compressor

AKX01127

APPLY AUTOMATIC 
TRANSMISSION FLUID 
TO ALL MOVING PARTS 
BEFORE INSTALLATION.

17

20

19

18

17

16

14

13

12

11

10

15

19

18

13

16

14

20

10

11

15

12

7

3

5

8

6

4

2

1

1 2

4

5

6

8

7

3

9

      9

AC

DISASSEMBLY STEPS

>>G<<

1.

SNAP RING

>>F<<

2.

CLUTCH REACTION PLATE

>>F<<

3.

CLUTCH DISC

>>F<<

4.

CLUTCH PLATE

>>E<<

5.

SNAP RING

>>D<<

6.

CLUTCH REACTION PLATE

>>D<<

7.

CLUTCH DISC

>>D<<

8.

CLUTCH PLATE

>>D<<

9.

PRESSURE PLATE 

<<A>>

>>C<<

10. SNAP RING

11. SPRING RETAINER

>>A<<

12. D-RING
13. RETURN SPRING
14. OVERDRIVE CLUTCH PISTON

>>A<<

15. D-RING

>>B<<

16. REVERSE CLUTCH PISTON

>>A<<

17. D-RING

>>A<<

18. D-RING

>>A<<

19. D-RING
20. REVERSE CLUTCH RETAINER

DISASSEMBLY STEPS