Mitsubishi Montero (2004+). Manual - part 433

UNDERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-59

UNDERDRIVE CLUTCH

DISASSEMBLY AND ASSEMBLY

M1233027300046

AKX00143

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APPLY AUTOMATIC
TRANSMISSION FLUID
TO ALL MOVING PARTS
BEFORE INSTALLATION.

AB

UNDERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-60

Required Special Tools:

• MB991629: Spring Compressor

• MD998907: Spring Compressor

• MD998924: Spring Compressor Retainer

DISASSEMBLY SERVICE POINT

.

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

illustration.

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

ASSEMBLY SERVICE POINTS

.

>>A<< D-RING INSTALLATION
1. Apply ATF to the D-ring.
2. Install the D-ring in the grooves of the underdrive clutch 

retainer and spring retainer. Make sure that the D-ring is not 
twisted or damaged when installing.

.

>>B<< RETURN SPRING INSTALLATION
Align the two return spring holes with the two projections on the 
underdrive clutch piston, and then assemble.

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DISASSEMBLY STEPS

>>E<<

1.

SNAP RING

>>D<<

2.

REACTION PLATE

>>D<<

3.

CLUTCH DISC

>>D<<

4.

CLUTCH PLATE

<<A>>

>>C<<

5.

SNAP RING

6.

SPRING RETAINER

>>A<<

7.

D-RING

>>B<<

8.

RETURN SPRING

9.

UNDERDRIVE CLUTCH  PISTON

>>A<<

10. D-RING

>>A<<

11. D-RING

>>A<<

12. D-RING
13. UNDERDRIVE CLUTCH  

RETAINER

DISASSEMBLY STEPS 
(Continued)

AKX00144

MD998907

MD998924

SNAP RING

AB

AKX00145

UNDERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-61

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

illustration.

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

.

>>D<< CLUTCH PLATE/CLUTCH DISC/REACTION PLATE 
INSTALLATION
1. Alternately assemble the clutch plate and clutch disc in the 

underdrive clutch retainer. Align and assemble the four 
clutch plates (where there are no teeth) (A in the illustration) 
with the underdrive clutch retainer hole (B in the illustration).

2. Install the reaction plate so that it is oriented as shown in the 

illustration. Assemble in the same manner as the clutch 
plate so that the section with no teeth (A in the illustration) 
matches the retainer hole  (B in the illustration).

.

>>E<< SNAP RING INSTALLATION
1. Install the snap ring in the groove of the underdrive clutch 

retainer.

2. Set special tools MB991629 and MD998924 as shown in the 

illustration, and compress the clutch element.

AKX00144

MD998907

MD998924

SNAP RING

AB

AKX00146

B

A

AB

AKX00147

ROUNDED EDGE CLUTCH PLATES

W
STAMP

REACTION
PLATE

CLUTCH DISCS

AB

AKX00148

MD998924

MB991629

AB

UNDERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-62

3. Confirm that the clearance (underdrive clutch end play) 

between the snap ring and reaction plate is the standard 
value. If the clearance is not at the standard value, select 
the snap ring and adjust so that the clearance is within the 
standard value.

Standard value: 1.6 

− 1.8 mm (0.063 − 0.071 inch)

AKX00149

SNAP RING

STANDARD
VALUE

REACTION
PLATE

AB