Hi all, I had a problem with the rear bush walking out in the arm so I looked into it and to my understanding of what that collar does is just space the arm on the bush and traps it in the one location, maybe its a load of BS but that bush never moved again after I installed that collar on the bush, having said that none of my other cars suffered from the bush moving out in the arm so maybe it was just a worn out arm to begin with, anyway here's a small video I made many years back.
Nice! That is what I need on the front UCA bushings. The rear got the collar and are ok. How did you get those collars, standard size pipe there in Australia?
