So about 2 weeks ago or so I was pulling out of my neighborhood and heard a large clunk which is what I thought was something with my brakes. A couple days later I heard it again but couldn't figure out what it was. Again a couple of days pass by and I get on the free way for the first time in a while and after getting up to about 60-65 I started feeling a little shake that's never been there before. After getting home I looked at my tires and noticed that the weights have started falling off. The wheels only have 30k... has this happened to anyone else?