9"rear
 

Does anyone know of a car that has a 9" ford with disk brakes that would fit my 66 stang. Also i want to find posi to fit that. Where would i get these used.

The old conversion is a Lincolon Versillis rear axle, ford 9in with discs. I think the axle spacing is within 1'2 inch of the 66 axle. While the axles can be had relatively cheap ($100) the problem is the brakes them selves are very expensive to rebuild and get replacement parts for. Mustangs Plus has parts for these. Why not get a 9in and have a disk brake conversion kit put on? Good luck with what ever way you go.