Special Tools

For equivalent regional tools, refer to Special Tools.

Note: The end of the bearing that has numbers stamped on it must face the J 44384 bearing installer , so that the numbers are visible when the bearing is installed.

1. Install the 1st/2nd and the 3rd/4th shift shaft bearing. Use the J 36190 driver handle  (1) and the J 44384 bearing installer  (2).



2. Install the mainshaft bearing race (3), using the J 8092 driver handle  (1) and the J 39435 installer  (2).



3. Install the countershaft bearing race (3), using the J 8092 driver handle  (1) and the J 39435 installer  (2).



4. Install the dowel pins (1).



5. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the threads of the backup lamp switch.

Caution: Refer to Fastener Caution in the Preface section.




6. Install the backup lamp switch (3) and tighten to 27 N·m (20 lb ft).
7. Connect the backup lamp switch connector harness (1) to the backup lamp switch.
8. Install the backup switch bracket and bolt with washer (2). Tighten the bracket bolt to 9 N·m (80 lb in).



9. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the threads of the transmission case fill plug (1), the temperature sensor (3) and the cooler line return fitting (2).



10. Install the transmission case cooler line return fitting (1) and tighten to 18 N·m (13 lb ft).
11. Install the transmission case fill plug (2) and tighten to 27 N·m (20 lb ft).
12. Install the coolant temperature sensor (3) and tighten to 39 N·m (29 lb ft).




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

13. Install the guide plate (2) and the guide plate bolts (1) and tighten to 22 N·m (16 Ib ft).

1. Install the transmission fluid pump outlet pipe fitting (3) and tighten to 27 N·m (20 lb ft).
2. Install the pump outlet cooler fitting (2), and tighten to 18 N·m (13 lb ft).
3. Install the vent assembly (1).



4. Install the transmission fluid pump check ball (3).
5. Install the transmission fluid pump spring (2).
6. Install the transmission fluid pump spring retaining plug (1). Tighten the plug to 27 N·m (20 lb ft).



7. Install the oil pump (3).
8. Install the oil pump cover assembly (2).
9. Install the retainer ring (1).



10. Install the dowel pins (1).




Caution: If the 1st/2nd speed shift shaft bearing is installed incorrectly it will interfere with the inner shift rail seal causing a leak.

11. Install the 1st/2nd speed shift shaft bearing flush with the clutch housing, using the J 36190 driver handle  (1) with the J 44384 bearing installer  (2).



12. Install the 3rd/4th speed shift shaft bushing flush with the clutch housing, using the J 36190 driver handle  (1) with the J 39439-1 bushing removal/installer  (2).



13. Install the input shaft seal, using the J 39433 input installer .




Note: One or more shims may be used.

14. Install one or more countershaft bearing shims (2) and the bearing race (1). Refer to Input Shaft, Mainshaft and Countershaft in Shimming Procedures.



15. Install one or more input shaft bearing shims 2) and the bearing race (1). Refer to Input Shaft, Mainshaft and Countershaft in Shimming Procedures.