Removal Procedure
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Remove the transfer case shield (if equipped). Refer to Shield Replacement .
- Remove the drain and fill plugs from the rear case half.
Important: Place a drain pan under the drain plug.
Installation Procedure
- Apply pipe sealant (GM P/N 1052080) or an equivalent pipe sealant to the threads of the drain plug.
- Install the drain plug.
- Fill the transfer case with oil. Refer to Capacities - Approximate Fluid .
- Apply pipe sealant (GM P/N 1052080) or an equivalent pipe sealant to the threads of the fill plug.
- Install the fill plug.
- Install the transfer case shield. Refer to Shield Replacement .
- Lower the vehicle.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten the drain plug to 20 N·m (15 lb ft).
| • | Ensure the oil drain plug is made of aluminum. A steel drain plug will cause accelerated corrosion that will destroy the integrity of the magnesium case. |
| • | Do not use a impact tool to install the drain plug. |
Tighten
Tighten the fill plug to 20 N·m (15 lb ft).
| • | Ensure the oil fill plug is made of aluminum. A steel drain plug will cause accelerated corrosion that will destroy the integrity of the magnesium case. |
| • | Do not use a impact tool to install the fill plug. |
