He told me the same thing but I have a YJ!
I used three of the inserts, one on each knuckle and one on the pass side tie rod where the drag link connects.
I not sure about the TJ but the pass side tie rod is a long one piece tie rod that goes from the pass side all the way over to the drivers side tie rod end. it has two holes (connection points) the first is for the drag link and the second is for the stabalizer, which I no longer use or need.
As for the DW itself, there are so many things that can cause it, especially on a TJ, but you can be sure that it is a loose or worn out part some where! Roger posted a list of know problem areas that read like a giants laundry list in one of the posts, it is some good reading!
Found the thread;
http://jt4x4.com/smf/index.php?topic=2393.msg25985#msg25985