I have a 97 TJ with a 3 inch suspension lift and I just had a Tom Woods custom drive shaft put on with a JB conversions SYE. Problem is since then there is a clunk whenever I start off after going the opposite direction. Like if I back up after going forward it will clunk, then when I go forward again it clunks again. If I go forward twice it only clunks the first time and won't do it again until I back up again. So basically it only does it once after changing direction. It is a loud clunk and sounds like it is coming from the middle or back of the jeep. I tried tightening shocks, track bar, and sway bar. Does anybody have any idea what it could be???