Mitsubishi Montero (2004+). Manual - part 432

LOW REVERSE ANNULUS GEAR

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-55

LOW REVERSE ANNULUS GEAR

DISASSEMBLY AND ASSEMBLY

M1233027100042

ASSEMBLY SERVICE POINTS

.

>>A<< ONE-WAY CLUTCH INSTALLATION
Install the one-way clutch so that the arrow stamp is oriented as 
shown in the illustration.

.

AKX00135

4

5

6

1

2

3

7

8

9

10

APPLY AUTOMATIC
TRANSMISSION FLUID
TO ALL MOVING PARTS
BEFORE INSTALLATION.

AB

DISASSEMBLY STEPS

1.

SNAP RING

2.

OVERDRIVE PLANETARY 
CARRIER

>>D<<

3.

THRUST BEARING NO.5

4.

UNDERDRIVE SUN GEAR

>>C<<

5.

THRUST BEARING NO.6

6.

OUTPUT PLANETARY CARRIER

>>B<<

7.

STOPPER PLATE

>>A<<

8.

ONE-WAY CLUTCH

9.

SNAP RING

10. LOW/REVERSE ANNULUS GEAR

DISASSEMBLY STEPS 
(Continued)

AKX00136

ARROW

AB

LOW REVERSE ANNULUS GEAR

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-56

>>B<< STOPPER PLATE INSTALLATION
Install the stopper plate onto the low/reverse annulus gear. 
Make sure that the stopper plate claw is securely engaged in 
the annulus gear groove.

.

>>C<< THRUST BEARING NUMBER 6 INSTALLATION

CAUTION

Make sure thrust bearing number 6 is mounted in the cor-
rect direction.
Apply Vaseline or petroleum jelly on the thrust bearing number 
6, and then install onto the output planetary carrier.

.

>>D<< THRUST BEARING NUMBER 5 INSTALLATION

CAUTION

Make sure thrust bearing number 5 is mounted in the cor-
rect direction.
Apply Vaseline or petroleum jelly on the thrust bearing number 
5, and then install on the overdrive planetary carrier.

AKX00137

STOPPER
PLATE

CLAW

GROOVE

AB

AKX00138

OUTPUT PLANETARY
CARRIER SIDE

AB

AKX00139

OVERDRIVE
PLANETARY
CARRIER SIDE

AB

CENTER SUPPORT

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-57

CENTER SUPPORT

DISASSEMBLY AND ASSEMBLY

M1233010000054

Required Special Tools:

• MB991630: Spring Compressor

• MD998924: Spring Compressor Retainer

DISASSEMBLY SERVICE POINT

.

<<A>> SNAP RING REMOVAL
1. Set special tools MD998924 and MB991630 as shown in the 

illustration so that they are pressed against the inner race of 
the one-way clutch.

2. Screw in the special tool nut, and lightly press against the 

inner race of the one-way clutch.

3. Remove the snap ring.

AKX00140

4

5

6

1

2

3

7

8

9

10

AB

APPLY AUTOMATIC
TRANSMISSION FLUID
TO ALL MOVING PARTS
BEFORE INSTALLATION.

DISASSEMBLY STEPS

<<A>>

>>C<<

1.

SNAP RING

2.

PLATE

3.

ONE-WAY CLUTCH INNER RACE

>>B<<

4.

O-RING

5.

SPRING RETAINER

6.

RETURN SPRING

7.

LOW/REVERSE BRAKE PISTON

>>A<<

8.

D-RING

>>A<<

9.

D-RING

10. CENTER SUPPORT

DISASSEMBLY STEPS 
(Continued)

AKX00141

MB991630

MD998924

SNAP
RING

AB

CENTER SUPPORT

TSB Revision

AUTOMATIC TRANSMISSION OVERHAUL

23B-58

ASSEMBLY SERVICE POINTS

.

>>A<< D-RING INSTALLATION
1. Apply ATF to the D-ring.
2. Install the D-ring in the grooves on the outer and inner 

periphery of the piston. Make sure that the D-ring is not 
twisted or damaged when installing.

.

>>B<< O-RING INSTALLATION
Install the O-ring onto the center support at the position shown 
in the illustration.

.

>>C<< SNAP RING INSTALLATION
1. Set special tools MD998924 and MB991630 as shown in the 

illustration.

2. Screw in the special tool nut, and lightly press against the 

inner race of the one-way clutch.

3. Install the snap ring.

AKX00142

O-RING

AB

AKX00141

MB991630

MD998924

SNAP
RING

AB