Quote Originally Posted by nailz77 View Post
Hi,

Have a front disc brake kit installed on a 57 chev.
Rear brake cylinders were seized and now replaced. Now rear drum brakes are locking up first.
Any suggestions?
How do I adjust the proportioning valve if it is that?

Dave
I know this is an old thread, but I was wondering if you found a solution to this. I have the same problem with my '55 chevy. Disc front, stock drums in rear. Thanks