I originally did a disc brake conversion in 1982 on my first Mustang a C code drum brake fastback, back then I found a 70 Mach 1 that was being parted out, and bought his disk brakes and 4 speed B&W T10. The Spindles fit my ball joints, and with some brake line re-plumbing, and Earls stainless steel flexible brakes lines, I was able to install, and align the car to factory specs. The 70 disc brakes our currently on my 1966 Ford Mustang Fastback. Jose F. Medeiros http://www.myspace.com/josemedeiros1/photos/albums/my-1966-ford-mustang-project-car/2956238#mssrc=SitesPhotos_SP_AlbumTitle_ViewAlbum