You know, I feel a little lame now since I actually clicked on the link Mike posted and it only talks about tire size for unmodified trucks.
Personal experience: I have 4" of suspension lift, 32x10.5 tires, and 25mm offset wheels (like having 1" wheel spacers). My tires rubbed on the plastic liners when I still had them in front. They still rub on the rear liners. I don't have sway bars.