My 50 Coupe has a 82 S10 rear axle but there is no parking brake hardware on the backing plates. I suspect that many other trucks and cars probably had the same setup and am hoping someone can connect me with a company or individual that can supply those parts.

 

There should be plenty of 82 S10 pickups in the junk yards. I believe they were pretty much the same till 1993. Try the U-Pick yards for better prices.