8-Inch Dual Power Brake Booster with 1-Inch Bore Zinc-Plated Master Cylinder and Disc/Drum Valve for 1957-1972 Full-Size Ford

Enhance the braking performance of your 1957–1972 full-size Ford or Mercury with LEED Brakes' 8" Dual Diaphragm Zinc-Plated Power Brake Booster Kit with 1" Bore Master Cylinder and Adjustable Valve. Designed for Ford Galaxie, Galaxie 500, LTD, Custom, Custom 500, Country Sedan, Country Squire, Ranch Wagon, Fairlane (full-size), and Mercury Monterey, Marquis, Park Lane, Marauder, Colony Park and related full-size platforms, this kit delivers reliable power brake assist with a clean, factory-style installation.

The 8-inch dual diaphragm power booster is hand-polished before receiving a durable yellow zinc finish for corrosion resistance and long-term durability. The included mounting brackets are engineered for a direct bolt-on fit to your factory firewall.

This kit includes a 1" bore dual bowl cast iron master cylinder and adjustable proportioning valve designed for most front disc/rear drum brake applications.

Note: This kit converts factory manual brake vehicles to power brakes. If your vehicle is already equipped with factory power brakes, you must use one of LEED Brakes’ Power-to-Power Upgrade Kits.

1957–1972 Full-Size Ford 8" Dual Diaphragm Zinc Power Brake Booster Kit Specifications:

• Master Cylinder Bore Size: 1 in
• Master Cylinder Design: Dual bowl
• Master Cylinder Material: Cast Iron
• Master Cylinder Finish: Natural
• Reservoir Included: Yes
• Master Cylinder Cap Included: Yes
• Brake Booster Type: Dual Diaphragm
• Brake Booster Diameter: 8 in
• Brake Booster Material: Steel
• Brake Booster Finish: Zinc
• Brake Pedal Rod Extension Included: Yes
• Mounting Hardware Included: Uses Original

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.

Learn more about the California Prop 65 warning included with LEED Brakes products.