GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Low and Reverse Clutch Assembly (455)

    • Inspect for disengaged or broken Low and Reverse Clutch Retainer (454)
    • Inspect for stripped or sheared splines on Low and Reverse Clutch (455)

Low and Reverse Clutch

    • Inspect for stripped or sheared splines on Low and Reverse Clutch Plates (449-453)
    • Inspect for damaged, deformed or improper surface finish on the Low and Reverse Clutch Plates (449-453)

Case Cover Assembly (403)

    • Inspect for disengaged or broken Low and Reverse Clutch Piston Spring Retainer (410)
    • Inspect for worn, damaged or debonding Low and Reverse Clutch Piston Seals (408)
    • Inspect for broken or deformed Low and Reverse Clutch Piston (408)
    • Inspect for improperly position or too large bleed hole in Low and Reverse Piston (408)
    • Inspect for porosity or improper finish on the Case Cover