Absolute did my D30, 4.56 & lock rite works great! I think a front locker is more of a must than the rear (but thats my $.02)
Im running 35" tires and have broke an axle... Yes I do wheel it, but I dont have the chajonies to keep up Alan, Bob, Geoff, YellowSub...
Gearing, 4.56 with 33" tires is a hoot! talk about being able to roast tires & get up to speed quick!
I do hope to get some where between Alan & Geoff's rig but all XJ are unique to the owners, there ideas & budget... Im a cheap SOG so Ill do what I can myself & then spend the $$ later.
But I do enjoy being able to jump in and drive up to Flag or Sedona or across town :)g)