Frame: Description and Operation

Frame and Body Mounting

The frame consists of 2 steel channel rails, a front crossmember, transmission support crossmember and a rear crossmember (trailer hitch). The side rails and welded crossmembers are not replaced separately. A front frame rail repair kit (5D058 and 5D059) is available if the front rail is to be repaired.

For diagonal or X-frame checking, refer to Dimensions. When welding is carried out on a vehicle, refer to Dimensions.

Body Mounts

The body support mounts:
- secure the body to the frame.
- cannot be lubricated during body support mount installation.

NOTE: Body fasteners are reusable if the following steps are followed:

- Body bolt threads must be cleaned of thread sealer by using a wire wheel or wire brush.
- Apply a new treatment of threadlock and sealer to the body bolt threads.
- Install the body bolts. For additional torque and material information refer to Specifications.