Premium Universal Brass Disc To Disc Brake Proportioning Valve For Classic Trucks Show Rigs And Hot Rods With Hella Smooth Pedal Feel And Slick Bolt Up Swap For Ford Chevy Dodge Build Projects

Universal Brass Brake Proportioning Valve For Truck
✔️ Brass PV4 Valve F&R Disc Fitment Bolt-Up Install

This brass brake proportioning valve regulates rear-line pressure to keep four-wheel disc setups balanced during heavy braking events. It slots into classic truck frames and show rig builds derived from Ford, Chevy, and Dodge platforms to deliver consistent pedal response without relying on electronic controllers. The rugged PV4 design mounts straight onto existing hydraulic tubing to prevent rear wheel lockup while preserving front-end bite for smoother stops on street strips and autocross tracks.

✅ PV4 brass body stands up to engine heat and road salt without pitting or weakening hydraulic seals
✅ Inlet front accepts 1/2-inch flare while outlet front takes 3/8-inch and outlet rear uses 9/16-inch threading
✅ Direct bolt-on installation skips welding or bracket fabrication so this swap lands clean on stock rails
✅ Adjustable spring load tames rear slide tendencies by bleeding off extra flow meant for panicked rear grabs
✅ Interchange number 172-1361 maps to common replacement slots for GM and Mopar disc-to-disc retrofits
✅ Handles full disc conversions where rear drum backups are gone but brake bias still needs strict management

💡 Manual Proportioning Valve Setup Tips To Tame Rear Slide Risks On Late Model Axle Swaps Adding a stand-alone valve gives hot rod builders exact command over rear brake pressure distribution when mixing different rotor sizes or mounting wider tires on beefier rear axles. Fine-tuning the pressure split keeps the rear end grounded during initial fade phases, letting the front brakes do their job without sending the tail out sideways.
- Stash the compact brass unit right behind the driver seat since low-profile housing clears tight fuel lines and crossmembers with no trimming needed
- Dropping the pressure knob a few clicks is a handy way to stop rear lockup on loose surfaces while keeping front pads biting deep into corners
- Factory master cylinders pair up well with this regulator because controlled bleed-off stops fluid volume spikes from overwhelming weaker rear wheel cylinders
- Wrenches trust this gear to level out handling quirks after switching to sticky drag radials or bigger sway bars that change vehicle weight transfer dynamics

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