I recently installed a tere flex high steer knuckle on my '89 xj.  I used crome-alloy tie rods with hiem joint ends. I did no other mods to my front dana 30 (solid axle). Instead of shaving the stock track bar mount for the tie rod to clear I just used the upper knuckle for tie rod and drag link. I did not change the angle of the track bar. I should probably mention that my xj has a custom long arm 8" lift. I bought it lifted.  The previous owner did a good job on the lift although never touched the steering. Hence the reason for the high steer knuckle. I never had death wobble until I installed the high steer knuckle.  Even with the stock steering(which was scary).   PLEASE HELP!!  I'M STUMPED!!  

in a 4 link w/ a panhard bar suspension the trackbar and the draglink must be the same length and run at the same angle.  this is because as the suspension compresses the drag link pushes the knuckle in an arc, and the panhard bar must push the axle in the same arc otherwise you will get crazy bumpster and death wobble.  a solution to the problem is to lower the trackbars frame mount(or raise the axle mount) the same amount as you raised the mount on the knuckle for the drag link  

Yea, Matt has that right on.