GM Service Manual Online
For 1990-2009 cars only

Assembly Procedure

Tools Required

J 33374 Collar Installer

    Important: Apply oil to the thrust surfaces on all gears and washers prior to installation.

  1. Install the following items for the 3rd gear:
  2. • The needle bearing
    • The 3rd gear
    • The blocker ring.

    Object Number: 12529  Size: SH
  3. Align the inserts of the following items with the grooves in the blocker ring:
  4. • The 3rd/4th sleeve
    • The hub assembly

    Important: Lubricate the collar and hub interiors prior to installation.

    After installation, lubricate the collar.

    After installation, inspect the springs for interference with the hub.

  5. Install the following items using the J 33374 and a hydraulic press:
  6. • The 3rd/4th sleeve
    • The hub assembly
    • The collar
  7. Install the following items for the 4th gear:
  8. • The blocker ring
    • The needle bearing
    • The 4th gear
    • The thrust washer with the recessed area facing fourth gear

    Important: Apply oil to the bearing interior and race surfaces prior to installation.


    Object Number: 107599  Size: SH
  9. Install the collar (1) and the stopper plate (2) using the J 33374 and a hydraulic press.

  10. Object Number: 12490  Size: SH
  11. Install the rear bearing using the J 33374 .