I thought I would ask the experts, or at least some that have had clutch or transmission issues. First I dont like to complain about things, cause this has been beat to death on the forums.Here is my issue would like some ideas what might be the problem. In the higher rpm's my clutch has vibration in it. The car shifts ok even cold. The car shifts fine even when the vibration is present. Is it a driveshaft issue? Is it because the the car is lowered? I know the first comments will be take it to the dealer. I can take it to the dealer but I feel I would have to return to stock. That would take a few minutes to accomplish and then would still worry about warranty because my local Ford dealership is very small and is located in Hicktown. May also consider going to larger dealership in Charlotte. So basically what is everybody"s opinion.,