I searched and found this thread, I have been told to search before just posting a new Q. This is close to what I am asking. For the rear what is the best yet most cost effective way to go. I would like a locker that'll behave normal on the street as this is my DD, but do a good job on the trails. What I have right now sucks, OEM. But I was just curious on the front. The D35 thing was becasue two people thought it didn't look to be a 30 but a 35, I thought they were nuts, but I'm not an axle guy. The guy who had this XJ before me did something to front end, the axel was replaced as i found a receipt for it but it does not list what axle was purchased. Everthing checks out on it so I'm not worried, the steering is loose(play wise) but all the linkage is fine. Anyways what is a good rear locker. I'm putting on a black diamond 3" lift on the first and a SYE on the next month. then uping another 1.5 inches via spacers in the front and shackle in the rear. then lockers the fallowing month, well that is the plan right now.