GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 28585 Snap Ring Remover
    • J 33381-A Transmission Front Differential Remover and Installer

    Object Number: 15886  Size: SH
  1. Rotate the transmission (15) so that the case cover flange is facing upward.
  2. Using J 28585 , remove the spacer retainer (647) for the differential carrier from the case.
  3. Remove the spacer (671).

  4. Object Number: 15887  Size: SH
  5. Set J 33381-A to the 3T40 Final Drive Install/Remove position.
  6. Insert J 33381-A through the final drive internal gear (673) to the differential carrier (678).
  7. Lift the carrier out of the case and set it on a clean work area.
  8. Remove J 33381-A from the carrier.

  9. Object Number: 15888  Size: SH
  10. Remove the selective washer (680) and the thrust bearing (681) from the case. The washer and the bearing may have remained on the carrier.

  11. Object Number: 16259  Size: SH
  12. Remove the following parts:
  13. • The final drive internal gear (673)
    • The bearing (674) between the sun gear (675) and the final drive internal gear (673)
    • The final drive sun gear (675)
    • On some models, the bearing (676) between the final drive and the sun gear