Hi I have a new 2011 Tahoe Z71. I would like to put different wheels (18" Method) and bigger off-road tires (BFG Mud-Terrain) on. Is 2 1/2" front end leveling lifts work (I want to keep it simple). What size tires can I use? Don't think I want to do suspension lift but open too suggestions. Just looking for what will work the best. Thanks ... Oh, I live in chicago any suggestion on where to have it done? I am new to all this.