Hello friends, I have a problem with my citroen berlingo, the issue is the rear wheels, they tread badly they are open, fortune is what they charge me, and I give myself the hand to do it, my question is what part is the one that is spent or broken ? Xq I saw some videos in which they change a ruleman at the ends of the bridge, but they put in doubt some friends who say that it is a bushing that goes where it grabs the mass, thank you