1957–1968 Ford Power Brake Booster & Master Cylinder Upgrade Kit - Factory Manual Brake Cars with Disc Brakes

Upgrade your 1957–1968 full-size Ford or Mercury manual disc brake vehicle with this 8-inch dual diaphragm power brake booster and 1-inch dual bowl master cylinder quick install kit from LEED Brakes. Designed specifically for non Y-Block vehicles, this kit converts your factory manual disc brake car to a dual bowl power brake system for improved pedal feel, safety, and braking performance.

This complete power brake conversion kit includes the master cylinder, dual diaphragm brake booster, necessary brake lines, and an adjustable combination valve. The included combo valve features an integrated brake pressure switch to activate your brake lights and allows you to fine-tune rear brake pressure to help prevent rear wheel lockup while maintaining proper brake balance.

Engineered for straightforward installation and a clean factory-style appearance, this kit delivers modern braking confidence while preserving the integrity of your classic Ford or Mercury.

1957–1968 Ford & Mercury Power Brake Booster and Master Cylinder Kit Features:

• Booster Size: 8-inch Dual Diaphragm


• Master Cylinder Bore: 1-inch Dual Bowl


• Master Cylinder Included: Yes


• Brake Booster Included: Yes


• Brake Lines Included: Yes


• Adjustable Combination Valve Included: Yes


• Brake Light Pressure Switch: Included


• Application: Manual Disc Brake Cars


• Quantity: Complete Kit

Fitment Notes:

• For non Y-Block vehicles only. Y-Block cars require kit number FC0032HK.


• Fits manual disc brake cars. If your vehicle has factory 4-wheel drum brakes, use kit FC0043HK.

Compatible Full-Size Ford & Mercury Models (1957–1968):

This power brake booster and master cylinder kit fits a wide range of 1957–1968 full-size Ford, Mercury, and select Edsel models equipped with manual disc brakes, including:

• Ford: Galaxie, Galaxie 500, LTD, Custom, Custom 500, Fairlane (full-size), Victoria, Sunliner, Starliner, Ranch Wagon, Country Sedan, Country Squire, Ranchero, Skyliner, Del Rio Wagon, Custom 300, Courier Sedan Delivery


• Mercury: Monterey, Montclair, Park Lane, Marquis, Marauder, Colony Park, Commuter, Villager, Voyager, S-55, Brougham, Breezeway, Meteor, Country Cruiser


• Edsel: Ranger, Villager, Corsair (1959–1960)

What’s Included in This Kit

See what is included in this kit in the video below:

LEED Brakes Pushrod Measuring Tool PSA Video

All LEED Brakes booster and master cylinder assemblies are preset before shipping. Watch the video below to learn how to properly measure pushrod depth and verify the accuracy of your measuring tool to prevent brake drag.

Learn more about why LEED Brakes adds this warning to their products.