gotta watch for inside rubbing. I had a set of aluminum rims with standard size tires (forget the size)on my 88 ranger. swapped the rims/tires around from the 88 ranger to the 87 Bronco 2. Both are 4X4, no after market lifts, the same as they were when they were made. The tires from the '88 ranger rub on the inside of the '87 Bronco 2 when making a sharp turn. I just discovered that the other day, so I'm not sure what exactly they are rubbing on yet. It's hardly noticable, barely makes any noise. In fact, I had the window down before I heard it. I took a quick look and saw where it had rubbed the metal shiny.
I guess I'll be needing some spacers but I've never messed with any so have no idea what to get.