Well we tried to fit them on the GT and nothing worked. Bought the black ones with the Heritage/Steelcrafter labels and guess what? They went right on. They are also over 3 inches taller than the red ones and we would have had less of a struggle getting the outer rocker off, at the rear. Five dollars more and what a difference. Moss states no real complaints about the Taiwan garbage! Got the good ones from the Roadster Factory and Brit tech. We needed a couple of sets, doing 3 cars.