7-Inch Chrome Dual Power Booster with 1-1/8 Inch Bore Flat Top Master and Side Mount Valve for GM AFX Disc/Disc Brakes

Enhance your vehicle's braking performance with this 7" Dual Diaphragm Chrome-Plated Power Brake Booster, Master Cylinder, and Disc/Disc Proportioning Valve Combo from LEED Brakes. This 7-inch power booster is meticulously hand-polished before receiving a high-quality chrome finish, delivering a premium appearance and long-lasting durability. Designed to mount directly to your factory firewall, this kit provides a seamless installation and clean under-hood look.

The kit includes a new chrome 1-1/8" bore flat top aluminum master cylinder and proportioning valve, specifically engineered for 4-wheel disc brake applications. Whether you are restoring a classic GM vehicle or upgrading for improved stopping power, this combo offers the reliability and performance serious enthusiasts expect.

Compatible with a wide range of GM AFX body vehicles including Chevrolet Nova, Oldsmobile Omega, Buick Apollo, Pontiac Ventura, and other GM models from 1964–1974, this kit provides an ideal balance of performance, fitment, and style.

7" GM Dual Diaphragm Chrome Power Brake Booster Kit Specifications

• Master Cylinder Bore Size: 1-1/8 in
• Bowl Design: Dual Bowl
• Master Cylinder Material: Aluminum
• Master Cylinder Finish: Polished
• Reservoir Included: Yes
• Reservoir Material: Aluminum
• Master Cylinder Cap Included: Yes
• Brake Booster Type: Dual Diaphragm
• Brake Booster Diameter: 7 in.
• Brake Booster Material: Steel
• Brake Booster Finish: Chrome
• 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.