Tools Required

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.

1. Disconnect the negative battery cable.
2. Remove the front impact bar. Refer to Front Bumper Impact Bar Replacement in Bumpers.



3. Remove the frame bolt from the frame crossmember nut (1).




Important: Do not damage the frame crossmember nut retainer, as the retainer will be reused.

4. Use an air chisel in order to break away the spot welds (3) on one side of the frame crossmember nut retainer.
5. Lift one side of the frame crossmember nut retainer in order to allow for the removal of the frame crossmember nut (1).
6. Remove the frame crossmember nut (1).

1. Install the frame crossmember nut (1).
2. Install the lower frame crossmember nut retainer into place in order to ensure the following conditions:

•	Proper placement of the frame crossmember nut (1)

•	Working condition of the frame crossmember nut (1)

3. Install the spot weld frame (3) crossmember nut retainer in the original location.
4. Clean and prepare the welded surfaces.
5. Apply corrosion protection.




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.

6. Install the new frame bolt to the frame crossmember nut (1).

Tighten
Tighten the bolt to 180 N·m (133 lb ft).

7. Use a pressure pot in order to apply anti-corrosion compound GM P/N 12346225 or the equivalent. Thoroughly coat the inside of the repair area through any access hole.
8. Install the front impact bar. Refer to Front Bumper Impact Bar Replacement in Bumpers.
9. Connect the negative battery cable.