GM Service Manual Online
For 1990-2009 cars only
Table 1: 1-2-3-4 Clutch Piston Installation
Table 2: Low and Reverse Clutch Piston Installation

1-2-3-4 Clutch Piston Installation


Object Number: 1891402  Size: MF

1-2-3-4 Clutch Piston Installation

Callout

Component Name

1

1-2-3-4 Clutch Piston

Tip
DT-47798 protector prevents the piston seal lip from damage during installation. Apply a thin coat of ATF to the ID of DT-47798 protector to ease the installation of the piston.

Special Tools

DT-47798 Seal Protector

2

1-2-3-4 Clutch Spring

3

1-2-3-4 Clutch Spring Retainer

Caution: Regulate the air pressure to 40 psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Tip

  1. Place the retainer onto DT-47799-1 which is part of DT-47799 compressor . Compressing the spring using DT-47799-2 which is part of DT-47799 compressor , will install the retainer into the retainer groove.
  2. Apply shop air to the clutch fluid feed hole in the clutch housing to verify proper piston operation.

Special Tools

DT-47799 Clutch Piston Spring Compressor

Low and Reverse Clutch Piston Installation


Object Number: 1891404  Size: MF

Low and Reverse Clutch Piston Installation

Callout

Component Name

1

Low and Reverse Clutch Piston

Tip
DT-47807 protector prevents the piston seal lip from damage during installation. Apply a thin coat of ATF to the ID of DT-47807 protector to ease the installation of the piston.

Special Tools

DT-47807 Clutch Piston Seal Protector

2

Low and Reverse Clutch Spring

3

Low and Reverse Clutch Spring Retainer

Caution: Regulate the air pressure to 40 psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Tip

  1. Place the retainer onto DT-47794-1 which is part of DT-47794 compressor . Compressing the spring using DT-47794-2 which is part of DT-47794 compressor , will install the retainer into the retainer groove.
  2. Apply shop air to the clutch fluid feed hole in the clutch housing to verify proper piston operation.

Special Tools

DT-47794 Spring Compressor