help, lincon brakes on my car

ok, im doin a brake job on my car, and i was workin on the back discs, and to my disbelief the guy that had the car before me neglected to put all the bolts that hold the caliper together BACK IN , so im missing one. my question is, what year lincon mark 7 brakes did they use on 89 saleens? cuz i need to know what year brakes im workin with so i can get new pins. ( unless anyone has a better idea......which I'm open to also) thanks guys