GMC Motor Homes 1973-1978 with
disc/drum brake setup Brake Proportioning Valve
Our GMC Brake Proportioning Valve comes with a 1 year warranty.
For use on Disc/Drum Setup Only
Our brake proportioning valve has a 9/16"-18 connection for Rear Brakes & Dual 3/8"-24 ports for the front brakes.
The connections from the Master Cylinder are 1/2"-20 and 7/16"-24.
This valve comes with a 1 year warranty.
We also offer a pigtail for the prop valve wire sensor and a prop valve bleeding tool in the related items section of this page.
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