Transmission Replacement MD

Tools Required

J 21366 Converter Holding Strap

Important: The following transmission replacement procedure serves as a guide. In order to provide enough clearance for removal of the transmission, removal of other components may be necessary on some vehicles. Information on the removal of other components are not included in this transmission replacement procedure.

1. Block the wheels.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
3. Remove the transmission oil level indicator and the oil level indicator tube. Refer to Transmission Fluid Filler Tube and Seal Replacement .
4. Remove the starter. Refer to Starter Motor Replacement



5. Remove the transmission oil cooler lines (1, 2) from the transmission.
6. Plug the transmission oil cooler line and the fittings in the case.



7. Remove the shift cable from the transmission.



8. Remove the wiring harness and disconnect the transmission electrical connectors (1, 2, 3).



9. Remove the fuel line from the fuel line bracket, if equipped.
10. If equipped, disconnect the main electrical connector from the rear of the transmission.



11. If equipped, disconnect the rear electrical connector.



12. If equipped, disconnect the electrical connectors (1, 2, 3) from the sensors.
13. Remove the propeller shaft. Refer to One-Piece Propeller Shaft Replacement , Two-Piece Propeller Shaft Replacement or Three-Piece Propeller Shaft Replacement in Propeller Shaft.



14. If equipped, remove the parking brake cable from the brake drum.



15. If equipped, remove the flywheel housing access cover.
16. Turn the flex plate using a pry bar or the engine at the harmonic balancer, in order to align the torque convertor bolts with the access hole or the starter hole.
17. Mark the flywheel and the torque converter or the flex plate relationship for reassembly purposes.



18. Remove the torque convertor bolts.




Important: Support the transmission with a transmission jack that can support a load of at least 349 kg (750 lb).

19. Install the transmission jack to the transmission.
20. Install a safety chain to secure the transmission to the transmission jack.
21. If equipped, remove the transmission rear support. Refer to Transmission Support Replacement .
22. If the rear engine mounting bolts are not attached to the engine flywheel housing, support the rear of the engine with a suitable lifting/supporting device.
23. Remove the transmission mounting bolts, if the mounts are attached to the engine flywheel housing. Refer to Transmission Mount Replacement .



24. Remove the nuts and the fuel line bracket.



25. Remove the bolts securing the transmission to the engine.



26. Remove the transmission from the engine by sliding the transmission rearward.



27. Install the J 21366 to the transmission converter housing in order to keep the torque converter from sliding off the transmission turbine shaft.
28. Lower and remove the transmission from the vehicle.

Important: Flexplate flatness must be 0.76 millimeter (0.030 inch) Total Indicated Runout (TIR) when measured at 292 millimeter (11.5 inch) diameter. If more, replace the flexplate.

29. If equipped, inspect the flexplate for flatness.

1. Raise the transmission to the engine.
2. If installed, remove the J 21366 from the transmission.
3. Align the transmission with the engine using the alignment dowels located at the rear of the engine.
4. Ensure that the torque converter can be rotated before tightening the studs and the bolts.

Important: DO NOT install the transmission by drawing it to the engine using the studs and the bolts.

5. Ensure that the transmission is flush against the engine.
6. Install the transmission to the engine while aligning the torque converter with the pilot hole in the engine flex plate.

Notice: Refer to Fastener Notice in the Preface section.




7. Install the transmission to engine bolts.

Tighten
Tighten the transmission to engine bolts to 55 N·m (41 lb ft).

8. If equipped, install the fuel line bracket and/or the harness brackets on the transmission mount studs.

Tighten
Tighten the bracket to 30 N·m (22 lb ft).




9. Turn the engine flex plate using a pry bar or engine at the harmonic balancer in order to install the torque converter to flywheel bolts.
10. Install the torque converter to flywheel bolts.

Tighten

•	Tighten the torque converter to flywheel bolts to 67 N·m (49 lb ft) (LCT 1000/2000, 2400).

•	Tighten the torque converter to flywheel bolts to 40 N·m (30 lb ft) (MD Transmissions).

11. Install the flywheel housing access cover.
12. Install the starter. Refer to Starter Motor Replacement in Engine Electrical.
13. If equipped, install the transmission rear support beam. Refer to Transmission Support Replacement .
14. Install the transmission mounts to the transmission. Refer to Transmission Mount Replacement .
15. Remove the safety chain and the transmission jack from the transmission.



16. If equipped, install the parking brake cable to the park brake drum.



17. Connect the electrical connectors (1, 2, 3), if equipped.



18. Connect the main electrical connector, if equipped.



19. Install the oil cooler lines (1, 2) to the transmission.



20. Install the oil level indicator tube. Refer to Transmission Fluid Filler Tube and Seal Replacement .
21. Connect the transmission electrical connectors and install the wiring harness to the transmission.
22. If equipped install the fuel line brackets.
23. If equipped install the fuel lines to the fuel line bracket.
24. Install the propeller shaft to the transmission. Refer to One-Piece Propeller Shaft Replacement , Two-Piece Propeller Shaft Replacement or Three-Piece Propeller Shaft Replacement in Propeller Shaft.



25. If equipped, install the shift cable to the transmission.
26. Check and fill the transmission with DEXRON III transmission fluid. Automatic Transmission Fluid and Filter Replacement .
27. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
28. Remove the wheel blocks.