7-Inch Chrome Dual Power Brake Booster with 1-1/8-Inch Bore Flat Top Master Cylinder and Adjustable Proportioning Valve for GM AFX

Elevate your vehicle’s braking system with the LEED Brakes 7-Inch Dual Diaphragm Chrome-Plated Power Brake Booster, Master Cylinder, and Adjustable Proportioning Valve Combo. Each 7" power booster is meticulously hand-polished before receiving a high-quality chrome finish, delivering show-quality appearance and long-lasting durability.

Designed for direct mounting to your factory firewall, this kit ensures a seamless installation. Included is a polished aluminum 1-1/8" bore flat-top master cylinder and an adjustable proportioning valve compatible with both disc/drum and 4-wheel disc brake systems.

Ideal for classic General Motors vehicles, including GM AFX body models from 1964–1974 such as the Chevrolet Nova, Buick Apollo, Pontiac GTO, and similar platforms, this kit delivers improved braking performance while maintaining a clean, factory-style fit.

Upgrade your classic car’s safety, reliability, and style with LEED Brakes’ precision-engineered dual diaphragm brake booster kit.

Chrome 7-Inch GM AFX Dual Booster, 1-1/8" Bore Master and Adjustable Valve Highlights

• 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 (in): 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.