Ok I had a new clutch, master and slave installed (9000 miles). It took the mechanic 4 days to finish the job, I am in United Kingdom not many vetts. GM paid the bill. When the clutch was removed one of the little tabs was broken off the backside of the pressure plate. Here is my question---with the car in neutral and you rev the engine on the way back down, about 2500 rpm's, you feel a little shutter throughout the car. I also notice while driving 1 thru 4 the shifter vibrates a lot more. The flywheel was turned so should I give it time to break in?:-?