Extension Housing: Service and Repair

Case Extension Assembly Replacement

Removal Procedure




1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Support the transmission with a transmission jack.
3. Place a drain pan under the vehicle.
4. Remove the propeller shaft. Refer to Rear Propeller Shaft Replacement (Rear Propeller Shaft Replacement).
5. Remove the transmission mount. Refer to Transmission Mount Replacement (4.2L) ()Transmission Mount Replacement (5.3L) ().
6. Remove the case extension bolts (1).
7. Remove the case extension (2).
8. Remove and discard the case extension O-ring seal (3).

Installation Procedure




1. Install a new case extension O-ring seal (3).
2. Install the case extension (2).
Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the case extension bolts (1) and tighten to 45 Nm (33 ft. lbs.).
4. Install the transmission mount. Refer to Transmission Mount Replacement (4.2L) ()Transmission Mount Replacement (5.3L) ().
5. Install the propeller shaft. Refer to Rear Propeller Shaft Replacement (Rear Propeller Shaft Replacement).
6. Remove the drain pan and the transmission jack.
7. Lower the vehicle.
8. Fill the transmission to the proper level with DEXRON(R) VI transmission fluid. Refer to Transmission Fluid Check (Transmission Fluid Check).