7-Inch Zinc-Plated Dual Power Brake Booster with 1-1/8-Inch Bore Master Cylinder and Side Mount Valve for 1960-1966 Chevrolet or GMC Disc/Drum Applications

Upgrade your braking system with this high-quality kit from LEED Brakes, featuring a 7" Dual Diaphragm power brake booster, master cylinder, and disc/drum proportioning valve. The 7" power booster is hand-polished and finished with a durable yellow zinc plating for corrosion resistance and a clean under-hood appearance. It is designed to mount directly to your factory firewall for a precise, factory-style fit.

This kit includes a 1-1/8" bore cast iron master cylinder and proportioning valve engineered specifically for front disc/rear drum brake applications, delivering improved braking balance and consistent pedal feel.

Chevrolet C10 / GMC Truck 7" Dual Diaphragm Booster Kit 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: Dual Diaphragm


• Brake Booster Diameter: 7 in.


• Brake Booster Material: Steel


• Brake Booster Finish: Zinc


• Brake Pedal Rod Extension Included: Yes


• Mounting Hardware Included: Uses Original


• Quantity: Kit

This complete kit is ideal for enhancing braking performance and long-term reliability in classic Chevrolet and GMC trucks.

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 verify measuring tool accuracy.

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