there are differences, but nothing you cant overcome. For example, alot of the larger trucks dont have the gas tank IN the cab, so they have some extra sheetmetal behind the seat and no hole for the filler spout. Other than that, the center transmission floor cover is not the same because alot of them had dump beds, parking brake, etc. So that cover is different. Other than that, NO. The cabs are exactly the same. Larger trucks front fenders are longer, hood is longer, etc. The cabs are interchangeable if you dont mind doing a little fabrication.
