PV2 172-1353 Brass Brake Proportioning Valve Disc/Drum Disc Front Drum Rear Brake Compatible with Chevy Buick Classic Car & Truck. Replace OE：PV2 172-1353. Improve Braking Performance: Replacing a faulty proportional valve can solve problems such as uneven braking, excessive rear brake locking, loss of braking force, and oil leakage caused by valve failure, tby reducing the loss of the braking system and improving the overall performance of the vehicle.

PV2 172-1353 Brass Brake Proportioning Valve Disc/Drum Disc Front Drum Rear Brake Compatible with Chevy Buick Classic Car & Truck. Replace OE：PV2 172-1353. Improve Braking Performance: Replacing a faulty proportional valve can solve problems such as uneven braking, excessive rear brake locking, loss of braking force, and oil leakage caused by valve failure, tby reducing the loss of the braking system and improving the overall performance of the vehicle.

PV2 172-1353 Brass Brake Proportioning Valve Disc/Drum Disc Front Drum Rear Brake Compatible with Chevy Buick Classic Car & Truck. Replace OE：PV2 172-1353. Improve Braking Performance: Replacing a faulty proportional valve can solve problems such as uneven braking, excessive rear brake locking, loss of braking force, and oil leakage caused by valve failure, tby reducing the loss of the braking system and improving the overall performance of the vehicle.