Chevrolet Silverado / GMC Sierra. Service manual — part 1123

Fig. 367: Forward Clutch Piston & Forward Clutch Housing
Courtesy of GENERAL MOTORS CORP.

6. Install the forward clutch piston (630) into the forward clutch housing (628).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 368: Locating 3rd & 4th Spring Assembly
Courtesy of GENERAL MOTORS CORP.

7. Install the 3rd and 4th spring assembly (626) into the 3rd and 4th clutch apply ring (625).

IMPORTANT: The forward clutch piston (630) apply legs must be indexed

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

8. Install the forward clutch housing (628) and forward clutch piston (630) into the 3rd and

4th apply ring (625).

Fig. 369: View Of J 29883 Installed In Input Housing
Courtesy of GENERAL MOTORS CORP.

9. Install the J 29883 on the input housing. See Special Tools.

10. Install the 3rd and 4th clutch apply ring and the forward housing and piston assembly using

the following procedure:

with the 3rd and 4th clutch apply ring (625) legs.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Hold the assembly by the 3rd and 4th clutch apply ring (625) legs during installation.

Do not let the forward clutch piston (630) separate from the forward clutch housing.

Firmly seat the assembly.

11. Remove the J 29883 from the input housing. See Special Tools.

Fig. 370: Inspection Areas On Overrun Clutch Piston
Courtesy of GENERAL MOTORS CORP.

12. Inspect the overrun clutch piston (632) for the following conditions:

Porosity or damage

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado