Wilwood 12.19-Inch Drilled Front Brake Conversion with Black Calipers and Hubs for 1970–1974 Ford/Mercury Applications

Black Dynapro calipers, drilled rotors and aluminum hubs form this Ford/Mercury front kit. Check spindle, production-date and machining requirements. Disc brake system design and manufacturing are Wilwood Engineering’s focus. Bill Wood founded the Camarillo, California company in 1977; its range spans brake rotors, master cylinders, calipers, fittings, valves and brake lines for motorsport, specialized and street-performance applications. The choice of individual components depends on the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-15406-D
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Pistons per service caliper: 4
• Service-caliper piston material: Aluminum
• Service-caliper mounting: Lug
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: Dynapro Dust-Boot
• Pad compound: BP-10
• Rotor Outside Diameter: 12.19 in; 309.63 mm
• Rotor Thickness: 0.81 in; 20.57 mm
• Rotor Material: Iron
• Surface Type: SRP Drilled & Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
• Included wheel-stud thread: 1/2-20 thread
• Rotor surface finish: Black Electro Coat
• Rotor vane / construction reference: 32 V
• Minimum wheel diameter guidance; verify clearance drawing: 15 in; 381 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: Yes
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: No

Fitment & Compatibility

Use only the specific Ford/Mercury spindle and equipment combinations in the table. The selected applications span 1970–1974, with different year ranges for Mustang, Cougar, Falcon, Maverick, Comet, Fairlane, Ranchero and Torino. The 1970 Falcon/Maverick drum-brake entries start at the stated August 25, 1969 production date. Factory disc-spindle installations require three mounting holes to be drilled and tapped as DS-1294 specifies; professional machining and possible original caliper-ear clearance work are required. Drum and disc spindles use different bracket-hole arrangements. Aluminum hubs, bearings, seals and 1/2-20 wheel studs are included; the new hubs provide 5 × 4.50 and 5 × 4.75-inch patterns and move the wheel face outward 0.09 inch. Flexlines are separate; check the 220-9195 reference against the actual route and fittings. Any master-cylinder conversion also needs the correct pushrod arrangement. The wheel template controls clearance even where a 15-inch wheel is nominally permitted.

Listed models: Fairlane; Falcon; Maverick; Mustang; Ranchero; Torino; Cougar; Cyclone; Montego; Comet. See the supplied table below for each year, submodel and equipment condition.

Wilwood product specifications · Installation instructions

With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.