Looking for someone that might know what I'm looking at here. It seems on my frame that there are no holes for the rear of the cab to mount to the frame. I put the old sub-rail assembly back on the frame to verify that I had the new sub-rail assembly in the correct location, and everything forward seems to line up. It also seems the bed may be too long, but I'm not sure. I pretty much got this truck as a basket case. Any help is much appreciated.