Swapping to disc brakes up front but keeping drums in the rear on your classic Chevy, Ford, or GM truck? You need this valve. The PV2 proportioning valve is crucial for balancing the brake pressure between the different systems. This brass valve is a universal replacement based on common part numbers like 172-1353. It manually adjusts the pressure to the rear drums to prevent them from locking up too early. It's a must-have upgrade for any street rod, classic car, or truck project with a mixed brake system. Makes your brakes safer and more predictable. Comes with a 2-year warranty.
