Wilwood Front Dynalite Brake/Hub Kit for Country Sedan/Country Squire/Courier Sedan Delivery/Crestline/Customline/Mainline/Ranch Wagon/Skyliner/Sunliner/Victoria/Custom/Monterey/Fairlane/Thunderbird/Montclair/Park Lane Wagon/Squire/Medalist (1954–1957)

Black Dynalite Internal calipers and plain integral rotor/hub assemblies form this Wilwood front conversion for the listed Ford and Mercury applications. The selected rotor component measures 11.29 inches in diameter and works with BP-10 pads on the compatible factory drum spindle. The kit uses a 5 x 4.50-inch wheel pattern, a particularly important distinction for the listed Mercury vehicles with a different original pattern. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12922
• Type: Classic Series Dynalite Front Brake Kit.
• Calipers: Forged Dynalite Internal; 4-piston; Black Powder Coat.
• Piston bore dimensions: 1.75, 1.75 inches; stainless pistons. Caliper mounting: lug.
• Included pad compound: BP-10.
• Rotors: 11.29-inch outside diameter × 0.94-inch width; Plain Face; Iron; Plain surface finish.
• Rotor construction: vented.
• Wheel bolt pattern: 5 X 4.5 in; 5 X 114.3 mm.
• Included: paired calipers, pads, rotors and mounting hardware, caliper mounting brackets; integral rotor/hub assemblies and bearing hardware.
• Application-specific hydraulic flex lines included.
• Conditional wheel minimum: 15 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.
• Diameter confirmation required: selected rotor component is 11.29 inches; kit summary says 11.28 inches and the installation heading says 11.30 inches. Confirm the supplied component before machining or clearance decisions.
• Stock-wheel clearance requires the supplied wheel spacers in the arrangement specified by the installation drawing; account for spacer thickness in wheel position and hardware engagement.

Fitment & Compatibility

Review the individual model/year and body-style entries, including the separate Thunderbird coverage. Wilwood requires the specified 1955–1956 Mercury applications to change to wheels with Ford's 5 x 4.50-inch pattern. Confirm spindle and bearing geometry before assembly. Check the complete wheel drawing rather than assuming every 15-inch wheel clears. Follow the hub-bearing and caliper-alignment procedure, route the included hoses correctly and verify the completed hydraulic system with the retained rear brakes.

Match the individual year, model, submodel and equipment conditions in the fitment table below.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for help confirming the complete setup.

Manufacturer warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.