We are adding rear disk brakes to my sons 79 Camaro. Any recommendations on master cylinder for this new disk/disk set-up? It currently has the original disk/drum master cylinder and booster. Also any recommendations on the proportioning valve.

 

Did you use the rear disk brakes off a 2nd gen Z28? If so just grab stock parts. If not you will need an adjustable proportionate valve.

 

We are not using the stock Z28 brakes. He bought a drum to disk conversion kit.
Thanks for your reply.