I have the stock upper two leaves and added three springs from a pack I found laying around. I used a torch and the big sledge and beat the snot out of it for about an hour per side. I run 36 Irocs on 10 inch wheels with 2 inch wwheel spacers. It never touches. Still have intentions of moving the rears up front, but what I have now works good. Oh, I do run a bigger shackle too, might make a difference.