you don't need the stronger frame to make a truck into a dually if it is just for the look like it is in pic of the R/T. adapter kit that bolts to your 5 lug bolt pattern and some big dually wheels and you have a dually. you just won't be able to haul a john deere tractor with it. or you can go the extra mile and if you have a torch and a welding machine, anything is possible.