Hi guy's Ive been fighting a brake problem ( rear brakes hang up) I've done all the hoses front and back , new wheel cylinders , shoes and hardware , so I'm gonna now do the master cylinder and I figured i would get a new prop valve too but GM doesn't make them anymore . Can someone give me an idea where to get a new prop valve for a disk/drum car i found this one but it doesn't give much info on the thread size and i heard that can be a PITA to match up right thanks in advanced.



http://www.summitracing.com/parts/RSD-PV72C/

 

im sure a disc/drum wont be hard to find at all in a junk yard..i figured the harder one to find would be disc/disc if anything. and if you do fine one im sure you have stuff it in a pocket or something. or you can ask ebmiller for one OR you can buy an adjustable prop valve.

 

I sent Ed Miller a email via his site thanks for the info. if any one else has any ideas I'm all ears.