Wilwood Front Black Dynapro 6 Kit for Early Ford Car/Truck Drum Spindles (1937–1948), 12.19-Inch Plain

This Wilwood early-Ford front conversion uses black Dynapro 6 calipers, plain 12.19-inch rotors and replacement hubs. Its mounting arrangement is for the specified original drum spindle used across the listed car and light-truck configurations. The vehicle list does not eliminate the need to identify the spindle and bearing interfaces. 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: 140-10739
• Type: Forged Dynapro 6 Big Brake Front Brake Kit (Hub)
• Calipers: Dynapro 6; 6 pistons; Black 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.
• 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

Read the exact model/year and body-style row and compare the installed spindle with DS641. Replacement suspension hardware may use a different pin or bearing arrangement from the original car. Match wheel studs and hub registration, provide suitable hydraulic lines and evaluate any master-cylinder pushrod changes for the existing pedal system. Use the wheel template to confirm caliper radius and spoke clearance.

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.