GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Corvette 🢒 Transmission 🢒 Manual Transmission - Tremec 6-Speed 🢒 Transmission Case and Adapter Assemble

Special Tools

    • J 8092 Universal Driver Handle
    • J 36017 Valve Seal Remover
    • J 36190 Universal Driver Handle
    • J 39433 Input Shaft Seal Installer
    • J 39435 Bearing Race Installer
    • J 39439-3 Bushing Installer
    • J 39442 Mainshaft and Countershaft Press Adapter
    • J 42464 Shift Shaft Seal lnstaller
    • J 42496 Inner Shift Rail Inner Seal lnstaller

For equivalent regional tools, refer to Special Tools.

Transmission Case


    Object Number: 1938414 Size: SH
  1. Install the 1st/2nd and the 3rd/4th shift shaft bushings. Use J 36190 driver handle and J 39439-3 bushing installer .

    2. Object Number: 38373 Size: SH
  2. Install the mainshaft bearing race, using the J 8092 universal driver handle and the J 39435 race installer .

    3. Object Number: 38372 Size: SH
  3. Install the countershaft bearing race, using the J 8092 universal driver handle and the J 39435 race installer .

    4. Object Number: 38365 Size: SH
  4. Install the dowel pins.

    5. Object Number: 1938438 Size: SH
  5. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the threads of the reverse lamp switch.

    6. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1938407 Size: SH
  6. Install the reverse lamp switch and tighten to 27 N·m (20 lb ft).
  7. Install the coolant temperature sensor and tighten to 39 N·m (29 lb ft).

    8. Object Number: 1938406 Size: SH
  8. Install the transmission case cooler line return fitting.

    9. Object Number: 408230 Size: SH

    Caution: The H-pattern on the guide plate must face the extension housing. If the guide plate is installed incorrectly, then damage will occur.

  9. Install the guide plate and the guide plate bolts and tighten to 22 N·m (16 Ib ft).

Adapter Plate


    Object Number: 1938426 Size: SH
  1. Install the check ball (3).
  2. Install the spring (2).
  3. Install the plug (1).

    4. Object Number: 1938423 Size: SH
  4. Install the oil pump (3).
  5. Install the oil pump cover assembly (2).
  6. Install the retainer ring (1).

    7. Object Number: 1887604 Size: SH
  7. Install the dowel pins.

    8. Object Number: 1887606 Size: SH

    Caution: If the 1st/2nd, 3rd/4th speed shift shaft bushing is installed incorrectly it will interfere with the inner shift rail seal causing a leak.

  8. Install the 1st/2nd, 3rd/4th speed shift shaft bushing flush with adapter plate, using the J 39439-3 bushing installer  (2) and J 36190 universal driver handle  (1).

    9. Object Number: 1938439 Size: SH
  9. Load the inner seal (1) and the outer seal (2) onto J 42496 seal installer .
  10. Install the shift rail seal (1 and 2) using J 42496 seal installer .

    11. Object Number: 1887607 Size: SH
  11. Install the input shaft seal, using the J 39433 shaft seal installer .

    12. Object Number: 1887598 Size: SH
  12. Install the countershaft bearing shim and bearing race. Refer to Input Shaft, Mainshaft and Countershaft in Shimming Procedures.

    13. Object Number: 1887596 Size: SH
  13. Install the input shaft bearing shim and bearing race. Refer to Input Shaft, Mainshaft and Countershaft in Shimming Procedures.

    14. Object Number: 1998735 Size: SH
  14. Install the adapter plate pump plug (3).
  15. Install the pump outlet cooler fitting seal (2) and fitting (1).

    16. Object Number: 1938441 Size: SH
  16. Attach J 36017 seal remover within the groove at the base of the oil filter assembly. Slide the collar of the tool down to grasp the oil filter assembly.
  17. Place the oil filter assembly with J 36017 seal remover  (2) attached onto the adapter plate.
  18. Using J 39442 press adapter  (1), tap the oil filter assembly into place with a hammer. Remove J 36017 seal remover  (2).