Gonna have to say new jeep guy to that one, I used to own a CJ 7 years ago, but drove it, and soldit in the same condition that I got it. This jeep, we have owned for about a month, a got it with alot of work already done to it. Both my wife and I are in the military and don't have the time to do a complete buildup......anyway. Based on the work I have done, in trying to understand what I own, I still can't figure out what I have other then the original dana 20 front and 30 rear.....but I really have no idea.