[RedneckRodder]

The rear kick up in the frame, beginning just forward of the rear spring hangers, will be your biggest obstacle with the shorter wheelbase frame. I extended (8") a short wheelbase frame to fit mine, and mounted my cab 1" off the frame. The bottom of the rear panel on the cab is less than 1/2" forward of the kick up with the added 8". I would think this would require modification to the cab (clearance for the frame rails and drive line) using the shorter wheelbase frame. But that All depends on how far you mount the cab off the frame rails.