Well from what I know you use the front caliper from a mid 80's GM "metric" body style ie Monte Carlo, rear rotors from either a Jeep Cherokee, or 2000 Ford Eplorer. You also need caliper brackets from Speedway. The brackets can also be bought on eBay. The brackets need to be welded on the rear housing. Over all you can install rear disc brakes for around $200, IF you shop around for parts. Rockauto, and eBay seem to have the best prices.
