Well I have to start by saying that I did a search and its not exactly the information that I was looking for. What I would like is just a rear locker. Non air. I dont want to have the hassle of carrying an air compressor. I currently have the LSD and if you are gentle it will kinda work, but not like what I would prefer. Is there even such animal as a non air locker for the X? and if so Why not? I see they make a front LSD, why dont the make somehign for the rear other than with air?... ok thats enough...