Proportioning Valve

Regular price $47.99
Sale price $47.99 Regular price
Unit price

This solid brass proportioning valve is crafted for disc/drum brake systems and ensures the perfect brake bias between your front and rear brakes. It’s ideal for hot rods, classic trucks, and swapped vehicles, helping prevent rear-wheel lockup during hard braking.


Key Features:

  • Solid brass construction for durability and corrosion resistance
  • Designed for disc front / drum rear systems – automatic pressure adjustment to rear brakes 
  • Standard ports: ½″-20 master cylinder inlet and 7⁄16″-24 master cylinder inlet, with outlets sized for front (3⁄8″–24) and rear (9⁄16″–18) lines 
  • Universal fit – works with most dual-reservoir master cylinders 
  • Ideal for GM, Ford, Mopar street rods and truck builds 


How It Works:

Under normal driving, the valve sends full pressure to all brakes. When pressure exceeds rear brake capability, it reduces fluid flow to the rear to prevent lockup—maintaining a safe, balanced stop .


What’s Included:

  • (1) Brass proportioning valve (PV2 style)
  • Pre-threaded ports for easy integration
  • Mounting bracket and warning switch sold separately


Install Tip: Mount it close to the master cylinder and use correct fittings for your lines. This valve helps significantly improve stability under hard braking.

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