Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body
Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body is a complete brake control valve for classic cars upgrading to front disc brakes. Priced at $60.19, it includes a metering block, proportioning valve, and warning light switch. Ideal for 1960–1974 A, B, C, and E-body vehicles with front disc and rear drum brakes, it ensures balanced braking and safety during high-performance or emergency stops.
● In stock
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Key features
- Fits 1960–1974 A, B, C, E-body vehicles
- Combines metering, proportioning, and warning switch
- Includes residual pressure valve for better response
- Features low-pressure shutoff for safety
- Bracket with removable mounting stud included
- Direct replacement for drum-to-disc upgrades
- Accepts standard brake lines (not included)
Pros
- +All-in-one brake control solution
- +Enhances safety with warning light switch
- +Simplifies disc brake conversion
- +Durable construction for long-term use
- +Correct fit for classic American cars
Cons
- −Brake lines sold separately
- −May require stud modification on some cars
About Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body
What is Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body?
The Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body is a factory-ready replacement or upgrade unit designed for classic American vehicles from 1960 to 1974 with front disc and rear drum brake configurations. This combination valve integrates a metering block, proportioning valve, residual pressure valve, and brake warning light switch into one compact assembly, ensuring optimal brake balance and safety. It's engineered to prevent rear wheel lockup during hard braking by regulating pressure to the rear drums while delaying front brake engagement until system pressure builds—critical for safe, responsive braking.
Key features
- Integrated Design — Combines metering, proportioning, and warning switch in one unit.
- Vehicle Compatibility — Fits A, B, C, and E-body vehicles from 1960–1974 with front disc and rear drum brakes.
- Safety Components — Includes low-pressure shutoff and brake warning light switch.
- Residual Pressure Valve — Maintains baseline pressure for improved brake response.
- Mounting Flexibility — Includes bracket with removable stud for varied installation setups.
- Direct Replacement — Upgrades original equipment without custom fabrication.
- Brake Line Ready — Accepts standard brake lines; lines sold separately.
Who is Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body for?
This valve is ideal for classic car restorers, hot rod builders, and DIY mechanics upgrading older vehicles from all-drum to front disc brake systems. It’s especially valuable for those working on muscle cars or vintage sedans where brake safety and performance are critical. The unit simplifies compliance with modern braking standards while maintaining original-style fitment.
How does Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body compare?
Compared to basic proportioning valves or standalone metering blocks, this integrated unit offers a complete factory-style solution without requiring multiple components or custom plumbing. Unlike universal valves needing manual adjustment, it’s pre-calibrated for disc-drum setups common in 1960s–70s American vehicles. It outperforms older OEM valves by incorporating modern safety features like the brake warning switch and residual pressure maintenance, making it a safer, more reliable upgrade over stock or fragmented aftermarket setups.
Best use cases
- →Front disc brake conversion
- →Restoring 1960s–70s muscle cars
- →Upgrading vintage A-body sedans
- →Improving brake balance and safety
- →Replacing worn OEM combination valves
Is Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body right for you?
This valve is best for DIY mechanics and restorers working on classic American vehicles from 1960–1974 upgrading to front disc brakes. Moderate mechanical skill is required for installation. It’s a direct-fit solution, so no custom fabrication is needed. Alternatives include piecing together separate valves, but this unit offers a safer, factory-integrated design at a competitive price point.
How it compares: Compared to standalone proportioning or metering valves, this unit offers a complete, pre-assembled solution with added safety features. It's more reliable than mixing separate components and better suited for classic car upgrades than universal adjustable valves.
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What vehicles fit the Labwork Brake Proportioning Valve?
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It fits A, B, C, and E-body vehicles from 1960 to 1974 with front disc and rear drum brakes. Common applications include classic Chrysler, Dodge, and Plymouth models. Always verify your brake configuration before purchase.
Does this valve include brake lines?
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No, brake lines are not included. The valve is designed to accept standard brake lines, which must be purchased and installed separately based on your vehicle's requirements.
How does the metering valve function in this unit?
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The metering valve delays front disc brake engagement until sufficient system pressure is built, ensuring rear brakes engage first. This prevents nose-dive and improves stability during initial braking.
Is the warning light switch built into the valve?
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Yes, it includes an integrated brake warning light switch that activates if pressure imbalance occurs between front and rear circuits, alerting the driver to potential brake issues.
Can I use this valve for a full disc brake setup?
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No, this valve is designed specifically for disc front and drum rear configurations. For four-wheel disc systems, a different proportioning valve setup is required.
How much does Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body cost?
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Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body is $60.19 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body in stock at Lab Work Auto?
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Yes, Labwork Brake Proportioning Valve & Metering Valve for Disc Drum A, B, C, E Body is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-016490