I recently acquired a 1993 YJ from an idiot for $1000.00. I sold the hard top and doors for $1200.00, bought a 1989 Chevy 350V8 TBI/700R4/NP241. Ok here it goes. The jeep has been sprung over. I had the drive shafts and everything made, but when I go in reverse it makes a knocking noise. A friend of mine who owns a jeep shop thinks I need a slip-yoke eliminator kit to make my drive shafts have not such an angle to them. Please e-mail me with any suggestions or comments KEVZTOYZ@COX-INTERNET.COM. I am just wondering if he is just trying to get money out of me, he told me $450 installed. I'll be honest, I don't know a whole lot about Jeeps, but we are totally restoring this on. I am just running into a lot of extra expenses that I didn't even know about. PLEASE HELP ME!!!!