I recently found this forum, you guys have developed an awesome resource!

I’m in the process of converting my rear drum brake S-10 Chevrolet to disc. I’m using ’77 Cadillac rear caliper brackets and calipers. I need an 11” 4 ¾ bolt pattern rotor. The Caddy rotors being 5 on 5 will not work. I checked at my local parts store for Camaro/Firebird rotors and found them to be 10 ½ inches. What year Camaro/Firebird rear rotors, if any, came with 11” rear rotors?

Thanks!

lol the stock (non 1LE) FRONT rotors on these cars arnt even 11"!


sorry you might wanna check on a 4thgen board though... the're brakes are alot bigger.. esp the 98+ ones.

Camaros from 82-92 run either 10 1/2"(non perf. package) or 12" (1LE option- perf. package) rotors from the factory and that's it. I believe the front 10 1/2's are interchangable part #'s with the S10's front 10 1/2.

Here's a link to a brake site that lists S10 under a camaro apllication- http://www.stillen.com/brakepros.asp?subcat=182

Edit: The link won't hold to the application I submitted- You'll have to imput Chev/Camaro/1987 and it will bring up an s10 application- they are 10 1/5" rotors- I know for certain.

www.nastyz28.com

I beleive that second gens came with 11" rotors (as well as first gens)

Kat

Thanks for the replies!

Yeah, I believe it was 77-81 Trans Ams had an optional rear disc package. I'm almost positive that they were a 11" rotor, because I almost did that swap on my '78 Nova.