Wilwood Front D8-4 Brake Kit for Ford Bronco 1976–1977, Black Calipers and 12.19-Inch Plain Rotors

This Bronco front kit uses black D8-4 four-piston calipers and plain-face 12.19-inch vented rotors. It is configured for the original Ford Dana 44 disc spindle, with included braided hoses and application-specific hats. Camarillo, California is home to Wilwood Engineering, founded by Bill Wood in 1977. Wilwood designs and manufactures disc brake systems, with calipers, brake rotors, master cylinders, fittings, valves and lines serving motorsport, street-performance and specialized uses. Select individual parts to meet the needs of the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13928
• 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 construction: Stainless
• Service-caliper mount: Lug
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: D8-4
• Pad compound: PM - ProMatrix
• Rotor Outside Diameter: 12.19 in; 309.63 mm
• Rotor Thickness: 1.25 in; 31.75 mm
• Rotor Material: Iron
• Surface Type: Plain Face
• Rotor construction: Vented
• Bolt Circle Diameter: 5 x 5.5 in; 5 x 139.7 mm
• Catalog stud / mounting-hole reference: 0.640 in; 16.26 mm
• Rotor surface finish: Plain
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset dimension: 1.450 in
• Minimum wheel guidance (clearance drawing required): 16 in; 406.4 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes

Fitment & Compatibility

DS-1075 specifies the 1976–1977 Ford Bronco Dana 44 disc spindle. Wilwood excludes GM disc-brake/spindle components, including a Bronco converted to that hardware. Check the existing hub register and five-lug pattern, the 16-inch wheel guidance, and the included front hose kit 220-13319 before installation.

Listed models: Bronco. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.