1-2-3-4 Clutch Piston Removal

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: 1-2-3-4 Clutch Piston

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	1-2-3-4 Clutch Piston Dam Retaining Ring. CAUTION: Use care when compressing the 1-2-3-4 clutch spring and dam assembly. Compressing the dam assembly too much may damage it. CAUTION: Refer to Retaining Ring Reuse Caution . Special Tool: J 38734: Intermediate Spring Compressor Adapter For equivalent regional tools, refer to Special Tools .
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.