As many other have endured this issues with their Jeeps, I too have fallen victim to the inevitable Death Wobble.
I decided to go with a MOOG bushing as I have used these in the past and have had good results from. I didn't need to remove the trackbar completely from the frame/axle and pressed out at a local shop. Just used a large C-clamp to remove (press-out) the old stock bushing which was completely f*cked up (see pics) and pressed in the the new 2-piece design Moog bushing.
Fairly easy to do. Which bushings do you prefer? how long do think this bushing will last?