August 20, 2012 Frame curves tying in a Jag IRS. These are "horizontal" curves. July 2012 The frame plates have been drilled. Our Ford motor mount kit, with quite a few modifications. Model A radiator mount used as lower shock mount. Frame curves tying in a Jag IRS. These are “horizontal” curves. Frame curves tying in a Jag IRS. These are “horizontal” curves. Frame curves tying in a Jag IRS. These are “horizontal” curves. Triangulated 8.8 upper mounts, with bars supplied by the customer. Triangulated 8.8 upper mounts, with bars supplied by the customer. Related