Wilwood Front Red Plain-Rotor Dynapro 6 Kit, Mustang II/Pinto/Bobcat (1974–1980), Five-Lug Hubs

Plain vented rotors and red Dynapro six-piston calipers distinguish this Wilwood front hub kit. The 12.19-inch rotor package is matched to replacement five-lug hubs and brackets for the original disc spindle. It retains the stated OE wheel mounting position while changing the caliper and friction assembly. 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: 140-10742-R
• Type: Forged Dynapro 6 Big Brake Front Brake Kit (Hub)
• Calipers: Dynapro 6; 6 pistons; Red Powder Coat.
• Bores: 1.62, 1.38, 1.38 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

This package retains the original disc-spindle geometry and stated OE wheel position while replacing the hubs and hydraulic friction assembly. It does not fit the earlier drum-spindle mounting arrangement or preserve four-lug wheels. DS644 gives the supported five-lug patterns and bearing interfaces for the individual Ford/Mercury application. Inspect those interfaces first, then align the plain vented rotors within the six-piston calipers. The remaining installation work includes wheel-template clearance, separately selected hoses and evaluation of the existing pedal/master-cylinder combination.

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.