07 Mustang GT Manual Transmission (4.10 gears) Driveshaft Shop Aluminum One Piece Driveshaft I had this clunk even when I had the OEM driveshaft, but less most of the Transmission Shops don't even want to diagnose it. They say the car is heavily moded and we don't touch it. ( I think they don't have its knowledge ) anyways, can I get help from all the Mustang fans out there about this issue? any ideas about what the problem might be? Thanks cheers !!!