Wilwood Front 12.88-Inch Superlite Brake Kit, Black, Ford Bronco Dana 30/44 Drum Spindles (1966–1975)

This early Bronco kit places black narrow Superlite 6R calipers over plain 12.88-inch rotors. Separate hats work with the original compatible hubs, while the listed flexlines are included. Wilwood Engineering, founded in 1977 by Bill Wood, is based in Camarillo, California. The company designs and manufactures disc brake systems and supplies master cylinders, calipers, brake rotors, valves, fittings and lines for motorsport, street-performance and specialized installations. Select each component around the complete system’s requirements.

Technical Details

• Manufacturer part number: 140-13304
• Application and package: Front Brake Kits - Street Performance; Front Kits; Disc; Sold as a kit.
• Rotor dimensions: 12.88 in; 327.15 mm outside diameter; 1.25 in; 31.75 mm thickness
• Rotor construction: Spec-37 Iron; Vented; Plain Face
• Caliper assembly: Forged Narrow Superlite 6R; 6 pistons per caliper; Forged Aluminium body; Radial mount
• Piston and finish specification: Stainless pistons; Black calipers; Black Powder Coat
• Hydraulic inlet: 1/8-27 NPT
• Wheel bolt pattern(s): 5 x 5.5 in; 5 x 139.7 mm
• Stud-hole / clearance provision: 0.640 in; 16.26 mm; diameter provision, not a thread designation
• Wheel diameter starting requirement: 17 in; 431.8 mm; verify the individual wheel against the installation drawing
• Included mechanical components: Mounting hardware: Yes; hub(s): No; spindle(s): No
• Hydraulic components supplied: Master cylinder: No; brake booster: No; brake lines: Yes
• Specified pad compound: BP-10
• Separate rotor-hat specification: Aluminum; Black E-Coat; offset current exact kit and hat pages list 1.000 inch, while the linked installation parts list labels 1.300 inches; manufacturer confirmation required before relying on this dimension; part 170-13314
• Published wheel-position / hub offset: +.00 inch per side; verify against the documented spindle assembly

Fitment & Compatibility

Check the original Dana 30/44 drum spindle, axle capacity and drum diameter against DS1009. The kit requires a wheel-profile check in addition to its nominal 17-inch diameter requirement.

Documented model groups, subject to each year, submodel and spindle/axle qualification: Ford Bronco. Application distinctions include 2700 Lbs Axle, 10" inch Drum Brakes; 3300 Lbs Axle, 11" inch Drum Brakes; 2900 Lbs Axle, 10" inch Drum Brakes.

Bronco drum-spindle applications: 1966–1973 with 2700-lb axle and 10-inch drums;1966–1975 with 3300-lb axle and 11-inch drums;1974–1975 with 2900-lb axle and 10-inch drums. Confirm the actual axle rating and spindle.

The original hub has a 3.57-inch drum-register step. The wheel must seat flush on the hub face; a separately supplied wheel spacer is needed if that step interferes.

DS1009 additionally documents a GM disc-conversion mounting path with a different bolt/spacer arrangement. Identify the actual converted spindle and use that specific assembly procedure; the drum path is not interchangeable.

The included stainless steel braided hydraulic hose kit is 220-13319, listed as 14.00 inches. Route it with adequate steering and suspension clearance.

Manufacturer References

• Wilwood exact kit specifications
• Wilwood installation instructions DS1009

Contact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.

Review the complete application table below with the year, submodel and installation qualifications above.