Good luck. It does sound like a normal warr. issue to me. Your express warr. likely excludes the implied warr. of fitness for a particular purpose as well as merchantability, etc. My Z06 needed a new tranny at 500 miles due to a bad synchro. It was done in 3 days and has worked great since. Rings are not likely to be seen as that significant. I do understand your frustration, however.