GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

2-6 Clutch Assembly

    • Inspect for damaged or worn 2-6 Clutch Plates (540-542)
    • Inspect for damaged, worn, broken, improper surface finish or sheared splines on the Low-Reverse Clutch Assembly (543)
    • Inspect for damaged or broken 2-6 Clutch Piston (535) and piston seals damaged, worn or delaminating
    • Inspect for broken or binding 2-6 clutch Piston Return Spring (536)

Reaction Carrier Assembly (567)

    • Inspect for stripped or sheared splines on the Input Ring Gear
    • Inspect for disengaged or broken Input Ring Gear Retainer

Reaction Sun Gear Assembly (566)

    • Inspect for damaged or broken Reaction Sun Gear Assembly hub
    • Inspect for damaged or broken sun gear weld
    • Inspect for loose or worn Reaction Sun Gear Assembly bushing

Case Assembly (50)

    • Inspect for stripped or sheared splines
    • Inspect for broken or disengaged 2-6 Clutch Piston Return Spring Retainer (537)
    • Inspect for damaged, worn, or improper surface finish in the piston bore