Originally Posted by Kwatson
so i just installed a 3 inch rough country suspension lift on my 2000 xj. i used front coil springs and shocks with rear add a leaf. i was driving down the road and experienced the "death wobble". after the lift i did align it and ive heard you should replace the track bar and get a drop pitman arm, granted im going to do both with a three inch lift is there anything thats absolutely necessary to replace? thanks for any help
I also did a 3" lift on my '93 xj but I made the HUGE mistake of trying to re-drill the axle bracket where the track bar end connects (the lift makes the track bar move to the driver's side about 3/4"-1"). Unfortunately my second hole ran into the first and created an oval hole which allowed the track bar to move back and forth-this created severe death wobble. My bad. Ultimately I had to go to an off-raod shop and have them basically rebuild and reinforce the axle bracket with a LOT of welding. Now it's fine, but I guess that's what I get for trying to be a cheapskate and not replace the track bar.
Sorry for getting a little off subject, but regarding YOUR death wobble, are you sure it's actual track bar-related wobble or is it a driveshaft yoke (whether front or rear), that is now pulled out too far from the support bearing? If this is the case, the lack of support causes the yoke to vibrate, especially under deceleration. If yours is like mine, you should be able to tell how far the driveshaft(s) are overextended by measuring the clean area on the yoke shaft. If it's more than about 1'-11/4" you might need to have your driveshafts lengthened. I was lucky-my XJ only has about 90K easy miles on it and the yoke bearings are still pretty tight. Hope this helps.