can you guys tell me if your dis from autozone had a rattle too it. mine had a rattle to it if i shook it around. im just wondering if the one i got was bad becuase it didnt fix my intermediate stumble, and now im trying to figure out what to do. autozone doesnt have another one in stock and would have to order it, so i figured if any of you guys remember or could check and see for me if yours has a little bit of a rattle when shaken. thank alot guys. brian