My rear suspension makes some mild clunking noises over bumps. I will assume that the upper shock mounts are worn at 90Kmiles and that they are part of the problem. But what about the Dog-bone on the lower trailing arms. They look like they are in fare condition, but I canít tell if it is shot or not. Has anyone changed theirs, it looks very easy. Did it make any difference? Are their replacements that are more performance oriented, trade offs? What did you pay for these things?