Chevrolet Silverado / GMC Sierra. Service manual — part 790
Fig. 149: Removing 1-2-3-4 Clutch Piston
Courtesy of GENERAL MOTORS CORP.
1-2-3-4 Clutch Piston Removal
Callout
Component Name
1-2-3-4 Clutch Piston Dam Retaining Ring.
NOTE:
Use care when compressing the 1-2-3-4 clutch spring
and dam assembly. Compressing the dam assembly
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
3-5 REVERSE CLUTCH PISTON REMOVAL
1
Special Tool:
J 38734 Intermediate Spring Compressor Adapter.
See Special Tools.
too much may damage it.
NOTE:
Refer to Retaining Ring Reuse Notice .
2
1-2-3-4 Clutch Piston Dam Assembly
3
1-2-3-4 Clutch Spring
4
1-2-3-4 Clutch Piston
Tip:
It may be necessary to apply air to the apply
passage in order to remove the piston. Install
the 1-2-3-4 clutch housing onto the torque
converter (with fluid pump) housing
assembly in order to apply air.
After air is applied, it may be necessary to
turn the housing assembly upside down and
carefully tap the housing against a flat surface
in order to release the piston.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 150: Removing 3-5 Reverse Clutch Piston
Courtesy of GENERAL MOTORS CORP.
3-5 Reverse Clutch Piston Removal
Callout
Component Name
Preliminary Procedure
1. Install the 1-2-3-4 and 3-5 reverse clutch housing assembly onto the torque converter
(with fluid pump) housing assembly.
2. Apply hand pressure on the 1-2-3-4 clutch piston housing while applying compressed
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
1-2-3-4 AND 3-5 REVERSE CLUTCH PISTON SEALS REPLACEMENT
air to the apply passage in order to unseat the 3-5 reverse clutch piston.
1
1-2-3-4 Clutch Piston Housing Retaining Ring
Special Tool:
DT 47867 Adjustable Clutch Spring
Compressor. See Special Tools.
NOTE:
Refer to Retaining Ring Reuse Notice .
2
1-2-3-4 Clutch Piston Housing
3
3-5 Reverse Clutch Spring
4
3-5 Reverse Clutch Piston
Tip: It may be necessary to turn the housing
assembly upside down and carefully tap the
housing against a flat surface in order to release
the piston.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
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