I shudder at wheel spacers for a variety of reasons, however if you use the longer studs on your rear end and get the bolt-on wheel spacers you should be ok. If you are buying new wheels, simply get the proper offset (back spacing) I myself will be running 8" wide wheels with only a 2" back spacing to avoid spacers. Looking at the tuck so far Robert, I would put a set of 9 1/2" wide wheels and run a set of 255 or wider tires.