I have a c5 forward pressure plate that is only .130 thick stock. Has any one ever used it in a with the c5 high drum for extra clearance. It perfect for 5 stock clutches and steels. But i'm afraid to use it with a manual vavlebody with brake. I have seen others use a extra steel and it will bend with street use. I think my line pressure is about 180psi. I hope it is made of better material but it doesnt seem much harder than a steel because a file will cut both.