Framing the Frame Question
Even with several recent advances in metallurgy and manufacturing processes, aftermarket modification of truck frame rails must follow strict guidelines to prevent damage and potential loss of warranty.
Even changes as simple as drilling bolt holes or cutting excess length from the rear of the frame can have an adverse effect if not performed to specific guidelines.
Because there are more than a few types of frame rails used on today’s trucks, it is important to determine the specific variety used, and then to follow the manufacturer’s guidelines for the modification.
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 |  Chevrolet Motor |
| Minimum spacing between frame cutouts and adjacent bolt holes must be maintained. |
Although most items that require attachment to the frame are dealt with at the factory, installing a body or equipment on a new truck, or retrofitting an older truck, can raise some questions regarding the proper techniques.
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