Chevrolet Silverado / GMC Sierra. Manual - part 897
Fig. 194: Piston Return Spring Assemblies
Courtesy of GENERAL MOTORS CORP.
9. Remove 3 piston return spring assemblies (1) from the 3rd, 5th, and reverse spring plate (2).
3-5-REVERSE CLUTCH PISTON REMOVAL
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. 195: Locating 3rd, 5th And Reverse Clutch Annulus Holes
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: The preferred method of dislodging the 3rd, 5th, and reverse
clutch piston is with compressed air. Use a 9.5 mm (3/8 in)
rubber hose on the air connection to reach into the 3rd, 5th,
and reverse clutch annulus port. When shooting air into the
annulus port, ensure that the rubber hose covers both of the
3rd, 5th, and reverse clutch annulus port holes. If
compressed air is not available, remove the 3rd, 5th, and
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
1. Position the air hose so that the hose covers both 3rd, 5th, and reverse clutch annulus holes
(1).
Fig. 196: View Of 3rd, 5th, And Reverse Clutch Piston Assembly
Courtesy of GENERAL MOTORS CORP.
2. Shoot air into the 3rd, 5th, and reverse clutch annulus port until the 3rd, 5th, and reverse
reverse clutch piston assembly using pliers.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
clutch piston assembly (1) is dislodged.
3. Remove the 3rd, 5th, and reverse clutch piston assembly (1).
TORQUE CONVERTER HOUSING FROM PUMP ASSEMBLY DISASSEMBLE
Fig. 197: View Of Converter Housing/Oil Pump Cover Module And Oil Seal
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado