4L60-E Automatic Transmission
TRANSMISSION REPLACEMENT
If the transmission is being lowered for clearance, perform steps 1-8 only
Remove
Tool Required:
J 21366 Converter Holding Strap
1. Negative (-) battery cable.
2. Air cleaner, and the TV cable from the throttle link- age, if the transmission is being removed, raise the vehicle.
3. Transmission fluid.
4. Shift linkage.
5. Relieve fuel system pressure and remove fuel lines.
6. Propeller shaft.
- Front propeller shaft, if used, from the transfer case.
7. The support bracket at the catalytic converter.
- Any other components as needed for clearance.
- Support the transmission, and the transfer case, if used, with a transmission jack.
8. Transmission crossmember.
Important
Do not stretch or damage any cables, wires or other components when lowering the transmission.
9. Transmission far enough for clearance to reach other components.
10. Dipstick tube (221) and the seal.
- Cover the opening in the transmission.
11. Speedometer harness connector
12. Vacuum modulator line, if used.
13. Electrical connectors from the transmission.
14. Cooler lines (223).
- Cap all openings in the transmission and the lines.
15. Transfer case shifter and move it aside.
16. Transmission support braces (222).
- Note the location of the braces, they must be installed in the same positions.
17. Converter housing cover (228).
- Mark the flywheel and the torque converter alignment.
18. Screws (230).
Important
- Support the engine with a jack or host before disconnecting the transmission.
19. Screws (226).
- Note the location of any brackets or clips and move them aside.
- Slide the transmission straight back of the locating pins (A) and install J 21366.
20. Transmission (225) from the vehicle.
Clean
Transmission case using a solvent dampened cloth. Do not allow solvent to enter the transmission. Air dry.
All hardware and flywheel cover using solvent. Air dry.
Inspect
- All parts for wear and damage.
- All seals and fittings for signs of leakage.
- Torque converter for stripped or broken weld nuts or screw holes.
- Transmission case for porosity.
Install
- If the transmission was lowered for clearance only, perform steps 13-20.
Tool Required:
J 21366 Converter Holding Strap
1. Transmission (225).
- Be sure the torque converter is seated properly and that J 21366 is in place.
- Support the transmission, and the transfer case if used, with a transmission jack.
- Raise the transmission into place and remove J 21366.
- Slide the transmission straight onto the locating pins (A) while lining up the marks on the flywheel and the torque converter.
Important
The torque converter must be flush onto the flywheel and rotate freely by hand.
2. Screws (226).
- All brackets, clips, and harnesses must be positioned as they were when removed.
- Do not install the dipstick tube or the transmission support brace screws.
3. Screws (230).
Tighten
- Screws finger tight to ensure proper converter seating.
- Screws (230) to 63 Nm (46 ft. lbs.).
- Remove the engine hoist or jack.
4. Converter housing cover (228).
- Hook the cover under the lip of the engine oil pan.
5. Transmission support braces (222).
- The braces must be installed in the positions form which they were removed.
6. Transfer case, shifter.
7. Cooler lines (223).
- Uncover the openings.
- Do not twist or bend the lines.
8. Vacuum modulator line, if used.
9. Speedometer harness connector.
10. Electrical connectors to the transmission.
11. Dipstick tube (221) with a new seal.
- Uncover the opening and install the seal first.
- Install screw (226).
Tighten
- 32 Nm (23 ft. lbs.).
12. Transmission in place.
Important
- Do not pinch or damage any cables, wires, or other components when raising the transmission.
13. Transmission crossmember and the transmission mount.
- Any components that were removed for clearance.
- Remove the transmission jack.
14. The support bracket at the catalytic converter.
15. Propeller shaft.
- Front propeller shaft to the transfer case, if used.
16. Fuel lines.
17. Shift linkage.
- Lower the vehicle.
18. New transmission fluid.
19. Air cleaner, and the TV cable, if removed.
20. Negative (-) battery cable.