Transmission Replacement (M76)
Transmission Replacement (M76)
^ Tools Required
- J 35944-A Transmission Oil Cooler and Line Flusher
- J 37096 Flywheel Holder
Removal Procedure
Important:
Transmission oil circulates between the transmission assembly and the transfer case. In situations where transmission related failures circulate debris into the transfer case, the transfer case must be disassembled, cleaned, and inspected for damage.
Important:
The transmission-to-transfer case end play check procedure must be performed each time the transmission, transfer case, or the internal components (excluding gaskets and seals) are replaced.
1. Remove the push pins from the coolant recovery bottle.
2. Position aside coolant recovery bottle.
3. Remove air cleaner assembly.
4. Remove the automatic transmission range selector cable (1) from the manual shaft (5).
5. Remove the automatic transmission range selector cable bracket (4).
6. Disconnect the wiring harness connector (3) from the transaxle.
7. Remove the wiring harness retainer from the side cover.
8. Remove the top 4 bell housing bolts (1, 2, 3) and stud (4).
9. Install the engine support fixture.
10. Remove the prop shaft.
11. Remove the engine to transfer case brace.
12. Remove the frame.
13. Remove the torque converter inspection cover.
14. Use J 37096 in order to gain access to the torque converter bolts and prevent the flywheel from turning.
15. Remove the torque converter bolts.
16. Disconnect the vehicle speed sensor.
17. Remove the right and left axle shafts into the transaxle.
18. Disconnect the transmission cooler lines.
19. Position the transmission jack under the transaxle.
20. Remove the transfer case to engine mount bolts.
21. Remove the lower transaxle bolt (6) and stud (5).
22. Remove the transaxle from the vehicle.
23. Remove the transfer case from the transaxle.
24. The transmission-to-transfer case end play check procedure must be performed each time the transmission, transfer case, or the internal components (excluding gaskets and seals) are replaced.
25. Important:
Use J 35944-A or equivalent to flush the following components whenever the transaxle is removed for overhaul or whenever the torque converter pump or the case is replaced.
Flush the transaxle oil cooler pipes and the transaxle oil cooler.
26. Transfer all necessary parts as needed.
Installation Procedure
1. The transmission-to-transfer case end play check procedure must be performed each time the transmission, transfer case, or the internal components (excluding gaskets and seals) are replaced.
2. Install the transfer case to the transaxle.
3. Position the flex plate alignment hole to the seven o'clock position.
4. Align the transaxle filler tube to the transmission and install the transaxle into the vehicle.
5. Notice:
Refer to Fastener Notice in Service Precautions.
Install the lower transaxle bolt (6) and stud (5).
Tighten the bolt and stud to 75 Nm (55 ft. lbs.).
6. Install transfer case to transmission bracket.
7. Install the transaxle brace.
8. Connect the transmission cooler lines.
9. Install the right and left axle shafts into the transaxle.
10. Connect the vehicle speed sensor.
11. Install the torque converter bolts.
Tighten the bolts to 63 Nm (46 ft. lbs.).
12. Install the torque converter inspection cover.
13. Install the frame.
14. Install the prop shaft.
15. Important:
Thoroughly clean and apply LOCTITE DRI-LOC 201 (GM P/N 12345493, or equivalent) to the bolt threads prior to assembly.
Install the propeller shaft-to-transfer case bolts (2). Ensure the special washer is in place on each pair of bolts.
Tighten the bolts to 33 Nm (24 ft. lbs.).
16. Install the propeller shaft-to-torque tube bolts (4). Ensure the special washer is in place on each pair of bolts.
Tighten the bolts to 33 Nm (24 ft. lbs.).
17. Install the front wheels.
18. Lower the vehicle.
19. Remove engine support fixture.
20. Install the upper transaxle bolts (1, 2, 3) and stud (4).
Tighten the bolts and stud to 75 Nm (55 ft. lbs.).
21. Connect the wiring harness (3) to the transaxle.
22. Install the transmission range selector cable bracket (4).
23. Install the automatic transmission range selector cable (1) on the manual shaft (5).
24. Install the air cleaner assembly.
25. Install the coolant recovery bottle.
26. Notice:
Do NOT overfill the transaxle. The overfilling of the transaxle causes foaming, loss of fluid, shift complaints, and possible damage to the transaxle.
Adjust the fluid level. Refer to Transmission General Specifications and Fluid Capacity Specifications.
27. Inspect for fluid leaks.