I have recently purchased a 2001 lincoln ls sport. It rides nice but over bumps and uneven road i hear "worn ball joint" sound like rattling/clicking. I think its my ball joints. And i wonder if I do have some in the back if they need to be changed to. The car has 208,000km.... How many do I have if I do need replacement. I have also been reading on broken hubs, possible? how can i tell. recently just purchased a new set of 17" alloy wheels for my car aswell stock size but a all season more of a summer tire on it. Got it put on at some little gas/shop station. He said they were balanced Never saw it. Just showed me the wheels off the car. Slapped em on and Tightened the lugs. Think he broke my hubs? thanks guys. much appreciated.