GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • DT-48238 Input 5th Gear Installer
    • DT-48236 Input 3rd/4th Synchronizer Installer

Assembly Procedure

    Important: 

       • Lubricate all components with transaxle fluid before installation.
       • The machined surface faces the needle thrust bearing.

  1. Install the sleeve bearing using an appropriate tool.
  2. Apply Sealer-Retaining (Permatex 620) to the circumference of the input shaft before installing the 5th gear.
  3. Install the 5th gear using the DT-48238 and a hydraulic press.

  4. Object Number: 1786258  Size: SH
  5. Install the thrust bearing (2).
  6. Install the two needle bearings (1).

  7. Object Number: 1786261  Size: SH
  8. Install the 3rd gear (4).
  9. Install the 3rd gear blocking ring (3).
  10. Install the thrust bearing (2).
  11. Install the thrust washer (1).
  12. Important: 

       • The machined surface of the synchronizer faces the thrust washer.
       • Make sure to align the slots in the synchronizer with the gear blocking ring tabs.

  13. Install the 3rd/4th synchronizer using the DT-48236 and a hydraulic press.
  14. Install the bearing collar using DT-48236 and a hydraulic press.

  15. Object Number: 1786268  Size: SH
  16. Install the 4th gear blocking ring (4).
  17. Install the needle bearing (3).
  18. Install the 4th gear (2).
  19. Install the thrust washer (1).