I have a 1987 suburban 2500 4 x 4 that is pretty rusty and I would like to fit a truck cab and box on if possible. Are the frames similar enough between the truck and suburban to do this? I realize the wheel base in 2 inches different so thats a slight problem. Does anybody know if the frames are similar? I was considering using the entire shell from a 1985 2500 4 x 4 truck. Please let me know!

Thanks!