C4 Clutch
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, 2003 Chevrolet Cab & Chassis Silverado, and 2002 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
DO NOT install special tools onto the gear thrust plate rivets of the C3 clutch backplate assembly. The rivets will be damaged.
- Install Bar & Stud Assembly (J-24204-2) or equivalent, and C3/C4 Piston Spring Compressor (J-44530) or equivalent, into main housing. See Fig 1. Ensure bar and stud assembly tool is not touching gear thrust plate rivets on C3 clutch backplate.
- Compress piston return spring assemblies until a gap is visible below retaining rings. See Fig 1. Remove retaining ring and spiral retaining ring. Remove special tools from main housing and remove C4 clutch backplate.
- Remove 5 C4 clutch friction plates and 4 reaction plates. Remove, as a unit, C4 spring plate and 3 piston return spring assemblies. Remove 3 piston return spring assemblies from C4 spring plate. See Fig 2. Remove P1 ring gear from inside main housing bore.