GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Sun Gear Thrust Washer 1st and 2nd Position

Inspect for wear or damage.

Input Shaft Thrust Bearing

Inspect for wear or damage.

4th Clutch Hub Assembly

    • Inspect for damaged or worn 4th clutch backing plate.
    • Inspect for improper selective 4th clutch backing plate retraining ring.