Brass Truck Disc/Drum Brake Brass Proportioning Valve For Chevrolet C30 C20 C10

Brass Proportioning Valve for Chevrolet C30 C20 C10

This brass disc/drum brake proportioning valve is a direct-fit replacement metering component for classic Chevrolet trucks, balancing hydraulic pressure between the front disc and rear drum circuits so both ends brake predictably.

Overview

This brass proportioning valve for Chevrolet C30 C20 C10 trucks regulates fluid pressure to the rear drum brakes, preventing premature lockup when the front discs grab first. It is built for owners restoring or servicing classic Chevrolet C-series brake systems that run a disc front and drum rear setup. The brass body resists corrosion and holds up to repeated heat cycles under the hood.

Built For Performance

• Solid brass construction resists rust and corrosion better than painted steel housings
• Metered rear pressure curve keeps drum brakes from locking before the front discs engage
• Threaded ports machined to accept standard inverted flare brake line fittings
• Compact body fits the factory mounting location on the frame or inner fender
• Compatible with DOT 3 and DOT 4 glycol-based brake fluid

Fits These Machines

• for Chevrolet C10 pickup
• for Chevrolet C20 pickup
• for Chevrolet C30 pickup

On-The-Job Use

• Restoring a classic Chevrolet truck from drum-drum to disc-drum brakes
• Replacing a seized or leaking factory proportioning valve
• Brake system rebuilds on C-series trucks used for farm or light hauling duty
• Keeping rear brake pressure balanced after a disc brake conversion

Specs At A Glance

Good To Know

Q: Do I need to bleed the brakes after installing this valve? A: Yes, any time the hydraulic circuit is opened the system must be bled at all four corners and the valve itself before the truck is driven.

Q: Will this valve work with an aftermarket disc brake conversion? A: It is designed for the disc-drum split used on these Chevrolet trucks, so confirm your conversion uses the same front-disc, rear-drum configuration and line routing.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.