Chevrolet Silverado / GMC Sierra. Service manual — part 895

Fig. 187: Piston Return Spring Assemblies
Courtesy of GENERAL MOTORS CORP.

9. Remove 3 piston return spring assemblies (1) from the 2-6 clutch spring plate (2).

IMPORTANT: The piston return spring assemblies snap off.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 188: View Of Input Internal Ring Gear
Courtesy of GENERAL MOTORS CORP.

10. Remove the input internal ring gear (1).

2-6 CLUTCH PISTON REMOVAL

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 189: Locating 2-6 Clutch Annulus Holes
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The preferred method of dislodging the 2-6 clutch piston is

with compressed air. If compressed air is not available,
remove the 2-6 clutch piston assembly using pliers. If
compressed air is used, note the following. Use a 9.5 mm (3/8
in) rubber hose on the air connection to reach into the 2-6
clutch annulus port. When shooting air into the annulus port,
ensure that the rubber hose covers both of the 2-6 clutch
annulus port holes.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

1. Position the rubber hose so that the hose covers both 2-6 clutch annulus holes (1).

Fig. 190: Locating Clutch Piston Assembly
Courtesy of GENERAL MOTORS CORP.

2. Shoot air into the 2-6 clutch annulus port until the 2-6 clutch piston assembly (1) is

dislodged.

3. Remove the 2-6 clutch piston assembly (1).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado