GM Service Manual Online
For 1990-2009 cars only

Special Tools

DT 46612 Brushing, Seal Installer


    Object Number: 1224149  Size: SH
  1. Measure the play (1) of the side gear and replace a side gear washer if it exceeds limit. Refer to Side Gear Axle Direction Play Table in Manual Transmission Specifications.

  2. Object Number: 1224156  Size: SH
  3. After checking driver (1) and side gear (2) for worn or scratched thrust adjusting shim, replace it if necessary.

Assembly Procedure


    Object Number: 1224138  Size: SH
  1. Insert the differential left side bearing (2).
  2. Note: Coat the inner parts of the bearing, washer, shim, etc. with gear fluid.

  3. Install the differential left side bearing using the bushing, DT 46612 , and a hammer.

  4. Object Number: 1224130  Size: SH
  5. Insert the speedometer drive gear (3).
  6. Insert the differential right side bearing (2).
  7. Install the right side bearing using the DT 46612  (1), and a hammer.

  8. Object Number: 1224141  Size: SH
  9. Insert the thrust adjusting shims to the side gears.
  10. Install the side gears (1).
  11. Install the pinion gears and washers (2) simultaneously.

  12. Object Number: 1224140  Size: SH
  13. Insert the pinion gear shaft into the gear pin hole by rotating (2).
  14. Note: Use a new pin.

  15. Install the pinion gear pin using a pin punch and a hammer (1).

  16. Object Number: 1224162  Size: SH
  17. Fix the differential assembly into a vise.
  18. Caution: Refer to Fastener Caution in the Preface section.

  19. Install the differential ring gear (1).
  20. Install the ring gear bolts (2) and tighten to 90 N·m (66 lb ft).
  21. Install the differential assembly. Refer to Transmission Assemble.