Tony,
A previous owner had put later 900-20 military tires with 9" rims that's why I needed to change back. As mentioned before this threw off the final drive ratio and the truck needed constant down shifting for small hills because of their larger diameter and it was a lot more un-sprung weight that made the truck ride terrible. Through a military truck site connection I found the correct wheels but I have also found them in wrecking yards that have old big bolts in them. I only used a 5 lb hammer to put the rings on, the trick is to get the ring into the groove on one side to start with and then work it around. I painted everything first and then touched it up after as there's no getting away from having to use a little brute force, overall not that hard to do. One of these days I'll do the photo bucket thing and post pictures of my truck here but can't do it at the moment.
Lastly if your going to use your four wheel drive at all don't mix tire sizes it will bind up the transfer case.
Enjoy your project, you got one hell of a truck there!
-Mike-
