This is a new in the box disc drum proportioning valve for 78-88 GM cars. This is the GM Proportional Valve used on all GM cars and trucks from 78-86. It has the plastic switch that is in the top of the Prop.
Adjustable Brake Proportioning Bias Valve Knob Style Suit Disc Drum Brake
Custom Adjustable Brake Proportioning Bias Valve Knob Style Suit Disc Drum Brake
For Ford Ranchero Fairlane Torino Hydro-Boost Disc Drum Brake Booster Master
2 &10 psi Residual Pressure Valve Disc/Drum Brake Universal 1 each
8" Zinc Power Disc Drum Brake Booster Kit for 1962-74 Plymouth Mopar Dodge
Black 1967-72 Chevy Truck 11" Power Disc Drum Brake Booster Master Cylinder Kit
