I know that most trucks have a frame made from channel, but since the frame is generally boxed, at least in the area of the C-notch, my comments will address a tubing structure.

We got this 1956 Ford F-100 frame through Art Morrison Enterprises, and now it was time to C-notch the framerails for clearance to get our desired height.

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Lowboy Motorsports, in Mesa, Arizona, is now offering an underbed C-notch that can be shipped in pieces, ready to weld in by a local fabricator near you or in your own garage if you possess the ...