thanks paradisePWoffrd, i have seen that link before. 7"-8" is about how much lift i am looking for so if thats what the stock YJ leafs give then that is probably what i will go with.
as far as the front hangers go, me and eric, OrangeTJ, are going to build a front bumper that i can mount the hangers on. if stock xj shackles will mount into the lower control arm brackets then i will do shackle reversal on the front.