Those would work well for the Magnum, but for a Ford application like mine, they will not. The Crane kit worked for both, because it did not have the hex on the stud. Since machine work would have to be done on the Ford pedestals, you may as well enlarge the bosses to 3/8, or 7/16. That's a good choice for the Magnum, though. I would even install some guide plates, too. I wonder how much spring pressure they can stand?