I am in the process of fitting the C5 brakes onto my 67 Firebird, and I just was hoping to get a simple measurement from you guys. I need to know what size the stock rear rotor is for the purpose of figuring out parts interchanging rules.

Here are the measurements for the C5 rear rotor:

12" total diameter
1.27" thick rotor

The park brake section area is:
7.5" diameter
1.5" deep

I am just wondering whether the drum brake stype park brake from an LS1 will work on the C5.

Thanks in advance,
Jon

 

Please! Anybody have this measurement?

Thanks,
Jon