You can put discs on the rear already. You just have to make the caliper brackets pivot with the axle. Joel in Keller, TX (DFW area) '66 Corsa w/air '63 Greenbrier 4spd '63 Greenbrier 8dr 4spd "Bob" '63 900 Convertible 4spd '67 Monza 4spd Posi '62 Monza Wagon PG 15 others I would like to put airbags and disk brakes all around.