I put this topic in Brakes, but nobody answered so here's my question: converting from drum to disc on a 67 chevelle I have installed the new booster from a 71 but the rod gets depressed about a half inch from the brake pedal. Should I shorten and rethread the shaft to fit the original brake pedal position or will this not cause a problem? Also has anyone used the 71 brake lines from aftermarket providers for this typw swap? Did you still have to bend the lines to fit properly? Thanks