Just bought a new Cobalt. It has @500
miles, and I have a clunking sound eminating mostly from the right rear when going over speedbumps or when turning into my subdivision and hitting the small indenture. A definate slight clunking (metal to metal). Anybody have any experence with this type of problem? Thoughts would be helpful. The veh has been at the dealers for two days and I'm afraid they're going to tell me NTF or it's not a safety issue (so live with it man).