I have a 99 Z28 M6 that grinds in first once in a while, that is the only gear it grinds in. Also if I let the clutch out fast when its not in gear, it make like a clunk, sounds like a throwout bearing, what do you guys think? Could this also cause the grinding in first gear?


Thanks

 

Probaly hydraulic related, yes. Could be slave/TOB or MC. It COULD be tranny related, but I doubt it...

 

I know my last car, 3rd would grind, turned out to be tranny. I have never had a car with first grinding, normally you dont beat on that gear too much. And also with the noise in the tranny, clunk and bang when you let out the clutch not in gear, I was thinking throwout bearing. I would like to upgrade the clutch hydraulics and clutch before I go with the cam so it will need to be done anyways.

Thanks