First-Reverse Brake Pistons: Disassembly

1. Remove bearing and race assembly from transmission case. See Fig 1 . Apply low air pressure to transmission case port and check for smooth operation of No. 1 and No. 2 first-reverse brake pistons. See Fig 2 .
2. If pistons DO NOT  operate smoothly, transmission or piston may require replacement. Using Spring Compressor (7539), compress piston return springs and remove snap ring. See Fig 3 . Remove spring compressor, piston return springs and retainer.
3. Apply air pressure to passage in transmission case used to check reverse brake pistons operation and remove No. 2 first-reverse brake piston. See Fig 2 .
4. Using Reaction Sleeve Remover (7542), remove reaction sleeve by inserting flanges on sleeve remover under reaction sleeve and lifting upward. See Fig 4 .
5. Using Brake Piston Remover (7543), remove No. 1 first-reverse piston by inserting flanges on piston remover/installer under piston and lifting upward. See Fig 5 .

Fig 1: Exploded View of First-Reverse Brake Pistons

Courtesy of CHRYSLER MOTORS.

Fig 2: Checking No. 1 & No. 2 First-Reverse Brake Piston Operation

Courtesy of CHRYSLER MOTORS.

Fig 3: Compressing First-Reverse Brake Piston Return Springs

Courtesy of CHRYSLER MOTORS.

Fig 4: Removing Reaction Sleeve

Courtesy of CHRYSLER MOTORS.

Fig 5: Removing No. 1 First-Reverse Brake Piston

Courtesy of CHRYSLER MOTORS.