I think it's an 85 or 86 Eldorado or Seville. Personally, I wouldn't recommend these calipers as I have had a hard time keeping mine in adjustment and everything about them is expensive. If you go mud whumpin' they will require maintenance after every run. Now, maybe I need to tweak and tune mine some, but I have the adjustment procedure down pat and it doesn't stay for more than a few drives after that. There's some good info on here regarding them so I'd do some research before taking the plunge. Good luck! And if you get yours set up with a high and hard pedal and stay in adjustment really well, then please post a writeup on what you did. I'm ready to go back to my old 11" drums.