I have to insist that going over about three inches on stock lower control arms is pushing it. I have daystar spacers and 3/4 ton coils on stock control arms and my axle sits to the rear of the fenderwell a good inch and a half. I could fit 38's right now if my axle was in the middle of the fender. Another issue, the axle is tilted forward, so instead of the tires turning freely from one side to the other, the lift each side of the truck up about an inch. That is my advise. I can't wait to get my 5 inch sj lift to correct the trackbar, lower control arms, pitman arm, and sway bar. These are the main things that need to be corrected on my truck right now. Rather than fix em one at a time I'll get the kit, go up about 3 inches and still have it right.