Wilwood 12.88-Inch SRP Front Brake/Hub Conversion, Black Calipers, Fairlane/Falcon/Mustang/Ranchero/Torino/Comet/Cougar/Cyclone/Montego (1968–1970 Ford/Mercury Disc Spindles)

Drilled/slotted 12.88-inch rotors distinguish this black Superlite 6R front package for the early Ford/Mercury disc-spindle layout. Replacement aluminum hubs carry separate rotor hats, and differential-bore six-piston calipers mount radially. The mounting pattern is specific to the listed spindle family, including the special Mustang production split. 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: 140-10219-D
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub)
• Calipers: Forged Narrow Superlite 6R; 6 pistons; Black Powder Coat.
• Bores: 1.62, 1.12, 1.12 inches. Pads: BP-10.
• Rotors: 12.88-inch diameter × 1.10-inch width; SRP Drilled & Slotted, Spec-37 Iron, Black Electro Coat. 48 curved vanes.
• Wheel mounting change from OE: +.25 inches per side.
• Hubs: Hub - Hat Mount; Aluminum; Bare.
• Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
• Included: paired calipers, pads, rotors, brackets and assembly hardware, replacement hubs, rotor hats.
• Not included: hydraulic lines, master cylinder, booster or spindles. Reuse suitable matching components.
• Conditional wheel minimum: 17 inches. Check the clearance drawing for barrel and spoke offset.

Fitment & Compatibility

Match the individual model, year and disc-spindle note in the table. The 1968–1969 arrangement and the later 1970–1973 disc spindle use different kits, so a Mustang year alone is insufficient around the transition. Account for the +0.25-inch wheel-position change and verify the actual wheel drawing. Select hydraulic flex lines separately and inspect pedal pushrod geometry if the master cylinder is changed.

Match the individual model, year, submodel and brake configuration in the fitment table below.

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

California Proposition 65 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.