Hi Patrick, There is a link somewhere that shows all the widths and gearing of many replacement axles that will work on your truck. I have a hard copy of it at the house, but its listed somewhere here on the board. A lot of people use the 70's Blazer with 6 lugs. The S-10's have 5 lug wheels and are about the right width as well. There are also some Camero rears that will work. Hopefully somebody will come up with a link. PS. I will be in OK City the night of the 16th on our way to Branson. I will give you a call. My wife was wanting to go see the brickyard and I wanted to see the Bass Pro shop if there's time.
Ralph