It is a stock diameter pully, although it does appear different than the '02 GTP. Bill, I was grasping at straws with the LIM issue, thinking some oil may be getting past and into the combustion chamber. Interestingly enough, it wasn't consuming a measurable amount of oil, just smoked like a bastard from time to time. Logic would say if it were stem seals, each morning at cold start it should have had the issue. Regardless, it doesn't look like a weedeater on a 4:1 ratio at random times during the day, so I guess I'm happy. If this didn't fix it, it was going to be an LS4. My wife is elated with the success, I am not so much.![]()