1-2-3-4 Clutch Piston Installation

WARNING: This page is about a different variant/trim than selected.

Fig 1: Exploded View Of 1-2-3-4 Clutch Piston Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	1-2-3-4 Clutch Piston NOTE: 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 276 kPa (40 psi) maximum. High pressure could cause the piston to over travel and damage the piston seals. Procedure 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. 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

Callout

Component Name

1-2-3-4 Clutch Piston

NOTE:

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

1-2-3-4 Clutch Spring

1-2-3-4 Clutch Spring Retainer

CAUTION:

Regulate the air pressure to 276 kPa (40 psi) maximum. High pressure could cause the piston to over travel and damage the piston seals.

Procedure

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.
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