Parker,
I use a 2" Rancho lift in the front with 315s. I left the rear stock. The weight of the engine brings my 2" lift to about 1. 5". I even shaved a little material off the corners of the fender flare/moldings. This works fine most of the time, but if I happen to turn through a dip just right with a little speed, I will sometimes rub a little. Although it is not bad enough to spend the money to raise the entire truck. As well, with a 2" lift you won't need a any additions to your steering system. This saves a little money as well. Check out my rig in the gallery (cotto's 93).