Disc Drum Brake Proportioning Valve for 1978-1987 All Full Size Trucks PV4 Brake Proportioning Valv

Fitment: for and for all 1978-1987 full size trucks, with disc brakes in front and drum brakes in rear. 2WD and 4WD, 1\/2 ton, 3\/4 ton, 1 ton! Even P30 chassis frame.Features:This brake valve is a 5 port valve and can be left, right or bottom mounted. Valve has 9\/16inch-18 ported rear brakes and dual 3\/8inch-24 ported front brakes. Connections from the master cylinder are 1\/2inch-20 and 7\/16inch-24.Material: High quality aluminum alloy material, wear resistant, sturdy and durable.Quality: Professional manufacturing, stable performance, has a long service life.Name:Brake Proportioning ValveModel Number:Disc Drum brakes Proportioning ValveSize Chart:17cm\/6.69inchType: Disc Drum brakes Proportioning ValveColour:As ShownMaterial:copperPackage Contents:1 x Brake Proportioning ValveOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.