9" Zinc Power Brake Booster Kit with 1-1/8" Bore Master Cylinder, Side Mount Valve for 1960-1966 Chevrolet C10/GMC Truck Disc/Drum Applications

Elevate your classic GM truck’s braking system with LEED Brakes' 9" Zinc Plated Power Brake Booster, Master Cylinder, and Disc/Drum Proportioning Valve Combo. Meticulously hand-polished before receiving a durable yellow zinc finish, this power booster delivers long-lasting protection and a clean under-hood appearance. Designed for direct mounting to your factory firewall, this kit provides a straightforward installation and dependable performance.

Included in this kit is a new 1-1/8" bore cast iron master cylinder and a side-mount proportioning valve engineered specifically for front disc/rear drum brake applications. Whether completing a restoration or upgrading your braking system, this combo offers improved stopping power, balance, and reliability.

This 9-inch power brake booster kit is compatible with 1960–1966 Chevrolet C10 and K10 trucks, as well as GMC C15/C1500 and K15/K1500 pickups. It’s an ideal upgrade for enthusiasts seeking enhanced safety, performance, and confidence behind the wheel.

1960–1966 GM Truck 9" Zinc Power Brake 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: Single Diaphragm
• Brake Booster Diameter: 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 verify measuring tool accuracy.

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