GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

2-6 Clutch Assembly

    â€¢ Inspect for worn or improper surface finish on the 2-6 Clutch Plates (446, 447) and Backing Plate (448)
    â€¢ Inspect for fatigued 2-6 Clutch Piston Cushion Spring (445)

Case Cover Assembly (403)

    â€¢ Inspect for damaged or broken 2-6 Clutch Piston (405) and piston seals damaged, worn or delaminating
    â€¢ Inspect for fatigued 2-6 Clutch Piston Return Spring (406)