Now that I have your attention I need ideas. I read alot of the driveline threads on here and they are usually a result of altering the suspension or buying a new vehicle. I've had my 04 LJ for over 6 months now and the only addition to my vehicles suspension has been adding the Racho 5000x shocks which ride great. Last friday i mounted my savvy engine skid and drove to get a haircut and I noticed a vibration around 60-65mph. I'm stumped, can a wearing u-joint cause this? I have had zero issues since I bought it.