I know most of you go with a 1/2 ton trucks. But thinking about converting over to a 1-ton dually. I am wanting to make it with a narrow rear end. like a cab and chassie uses. I was told that I could use the h.d. 3/4 ton rear and longer axle studs and the dually rims and tires. I saw a 70 model once at a swap meet,nobody was around. But it was a dually, and the outside rear tires were not much wider then the truck cab,and they almost lined up with the front wheels. THANKS