It's a 81 Camaro 8.5 10". It is my belief that all 78,79,80, & 81 10 bolts are the same. These 2002 Camaro/Firebird discs just bolt right up to the flange. It is a bolt on like it was made for it. The parking brake lever works very well and should be easy to set up to any config you need. I bought these on Ebay.