9" Zinc-Plated Power Brake Booster Kit with 1-1/8" Bore Master Cylinder and Bottom Mount Valve for 1955-1968 Chevrolet Disc/Drum Applications

Elevate your classic GM vehicle’s braking system with the LEED Brakes 9-Inch Zinc-Plated Power Brake Booster, Master Cylinder, and Disc/Drum Proportioning Valve Kit. This meticulously hand-polished power booster is coated with a durable yellow zinc finish for long-lasting corrosion resistance and a high-quality appearance.

The kit includes a 1-1/8" bore master cylinder and a disc/drum proportioning valve engineered specifically for optimal performance in front disc and rear drum brake setups. Designed for direct installation to your factory firewall, this combo delivers improved braking performance while maintaining a clean, factory-style look.

This essential upgrade is ideal for classic Chevrolet restorations and performance builds and is compatible with a wide range of models, including:

• Chevrolet Impala (1958–1968)
• Chevrolet Bel Air (1955–1968)
• Chevrolet Caprice (1966–1968)
• Chevrolet Biscayne (1958–1968)
• Chevrolet Nomad (1955–1956)
• Chevrolet Del Ray (1955–1958)
• Chevrolet 210 (1955–1957)
• Chevrolet 150 (1955–1957)

This power brake booster kit is a smart solution for upgrading classic Chevrolet braking systems, providing improved reliability and performance while preserving the original aesthetic of these iconic vehicles.

Specifications

• Master Cylinder Bore Size: 1-1/8 in
• Bowl Design: Dual Bowl
• Master Cylinder Material: Cast Iron
• Master Cylinder Finish: Natural
• Reservoir Included: Yes
• Reservoir Material: Cast Iron
• Master Cylinder Cap Included: Yes
• Brake Booster Type: Single Diaphragm
• Brake Booster Diameter (in): 9 in.
• Brake Booster Material: Steel
• Brake Booster Finish: Zinc
• Brake Pedal Rod Extension Included: Yes
• Mounting Hardware Included: Uses Original
• Quantity: Kit

LEED Brakes Pushrod Measuring Tool PSA Video

All LEED Brakes booster and master cylinder assemblies are preset before shipping. Watch this short video to learn how to properly measure pushrod depth and how to quickly test your measuring tool for accuracy.

Click here to learn more about why LEED Brakes has added this warning to their products.