The rear kits are made by TSM and use the small late-70's to early-80's Cadillac parking brake calipers or front calipers if you're not running a parking brake. These are metric since they're post 1978. If you want an application by year/make/model, try a 1980 Caddy Eldorado for the parking brake calipers or any 1978-1988 GM G-body (Malibu, El Camino, Regal, etc) for the front calipers.