GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 22912-01 Split Plate

Caution: When handling parts that have been preheated for installation purposes, always wear leather welding gloves with a minimum amount of handling time. Failure to wear leather gloves may result in severe skin burns or personal injury.

Important: Heat the input shaft, collar and the stopper plate in an approved preheat oven to approximately 95°C (200°F) just prior to removal. DO NOT use an acetylene torch or other open flame. Always allow the preheated parts to cool after removal. DO NOT quench the preheated parts with water. Use compressed air to help cool any preheated parts.


    Object Number: 12528  Size: SH
  1. Remove the following items as an assembly using the J 22912-01 (inverted) and a press:
  2. • The rear bearing
    • The thrust washer
    • The 4th gear (1)
    • The needle bearings
    • The 4th gear bearing collar
    • The 4th gear blocking ring
    • The 3rd/4th synchronizer assembly
    • The 3rd gear blocking ring
    • The 3rd gear (2)
    • The needle bearing

    Object Number: 107546  Size: SH
  3. Remove the collar and the stopper plate. Use a J 22912-01 (inverted) with a press. Discard the collar and the stopper plate.