This combination/proportioning valve regulates the flow of fluid from rear to front. (2) 3/8-24" ports for the front brakes. (1) 9/16-18" port for the rear brakes. We only warranty cost of item parts.
Fits C10 C20 C30 Chevrolet Brass Truck Disc/Drum Brake Brass Proportioning Valve
Brass Truck Disc/Drum Brake Brass Proportioning Valve For Chevrolet C30 C20 C10
Brass Truck Disc/Drum Brake Brass Proportioning Valve Fits GM Chevy C30 C10 C20
76 PCS Brass DOT Air Line Fittings Kit Upgrade Semi Truck & Trailer Brake System
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43 PCS Brass DOT Air Line Fittings Kit for Semi Truck Trailer Brake System, USA
