I have a 59, 3100 with a fleet side box that was not assembled when I bought the truck. It came with a new front panel, and when I put it together the old Chevrolet tail gate that came with it seems seems too wide. Does anybody know what the factory 1959 fleet side tail gate width should have been. I am not sure if it is the wrong tail gate, the wrong / low quality front panel, or both, and I am not much of a restoration expert.
It looks like I have it backwards it measures 65-1/4 " between at the front between bed rails, and 64-3/4" at the back. cross sills are aftermarket too that came with the truck.