Does anybody make a 13" or bigger rear disk kit for 98+ f-body?

Hello, ive been searching and searching with no luck and wanted to find out if anybody or company out there makes a bigger than stock rear disk upgrade for the 98+ f-body. Seems all the kits just have bigger/more pistons in the caliper but keep the stock 12" diameter rotor.

I have C6 ZO6 14" rotors/6 piston PBR calipers on my Project Sonoma GT, and i have installed 98+ f-body 12" stock brakes on the rear, but wanted to use the 13.4 C6 ZO6 rear rotors and 4 piston calipers, but the rear rotors have a shallower hat for the parking brake and wont work, Id love to have a 13" or 13.5 rear rotor that will work with the ZO6 caliper or even the stock f-body rear caliper.:help:

Please tell me in not SOL on this, and point me in the right direction?


Also has anybody tried swapping C5 parking brake components to see if that would allow the C5/C6 rear rotors to work on the F-body???

check wilwood, and baer.
i have the wilwood.