Review on ACDelco 45G11024 Professional Suspension Control by Sam Lee

You seem to have solved my problem. I had a hard metal noise that sounded like it was in my 02 TA WS6 in the back. This noise was not constant either, but occurred from time to time. I haven't seen any wear on them, but I was able to rotate the LCA a bit. I used my press to push out the old ones that had built in channels where they were tight all the way around. After replacement, I did not hear such a noise. Very happy with these which I believe have replaced the factory originals.