Wilwood Front Plain-Rotor Dynalite Kit with Polished Calipers, Mustang II/Pinto/Bobcat (1974–1980), 12.19-Inch

Plain vented 12.19-inch rotors and polished four-piston calipers form this Wilwood front conversion. The replacement hubs and brackets fit the specified Ford/Mercury disc-spindle family, with a five-lug wheel arrangement. This configuration retains the stated OE wheel mounting offset while replacing the hub and friction components. 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: 140-10440-P
• Type: Forged Dynalite Big Brake Front Brake Kit (Hub)
• Calipers: Forged Dynalite Internal; 4 pistons; Polish.
• Bores: 1.75, 1.75 inches. Pads: BP-10.
• Rotors: 12.19-inch diameter × 0.81-inch width; Plain Face, Iron, Plain. 32 vanes.
• Wheel mounting change from OE: .00 inches per side.
• Hubs: Hub - Vented Rotor Offset; 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.
• Not included: hydraulic lines, master cylinder, booster or spindles. Reuse suitable matching components.
• Conditional wheel minimum: 15 inches. Check the clearance drawing for barrel and spoke offset.

Fitment & Compatibility

Identify the Mustang II, Pinto or Bobcat spindle and check the exact application row. The original disc-spindle requirement excludes the earlier drum arrangement. Inspect the hub bearings and wheel registration, then choose suitable hydraulic lines for the vehicle. A nominally unchanged offset does not establish wheel-spoke clearance; compare the actual inner profile with the installation drawing.

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.