Wilwood Front Black Superlite 6R Kit, 14-Inch GT Rotors for Bronco Dana 30/44 Drum Spindles (1966–1975)

This larger early-Bronco front kit uses black six-piston Superlite calipers and slotted 14-inch rotors. The hats retain compatible existing hubs, and the flexible brake lines are supplied. Founded in 1977 under Bill Wood, Wilwood Engineering operates from Camarillo, California. The company designs and manufactures disc braking systems and components, including calipers, master cylinders, brake rotors, fittings, valves and brake lines. Its motorsport, specialized and street-performance range requires individual parts matched to the complete braking arrangement.

Technical Details

• Manufacturer part number: 140-13329
• Application and package: Front Brake Kits - Street Performance; Front Kits; Disc; Sold as a kit.
• 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
• Rotor dimensions: 14.00 in; 355.6 mm outside diameter; 1.25 in; 31.75 mm thickness
• Rotor construction: Spec-37 Iron; Vented; GT Slotted
• 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: 18 in; 457.2 mm; verify the individual wheel against the installation drawing

Fitment & Compatibility

Verify the Dana 30/44 drum spindle and the axle-rating/drum-size row against DS1023. Check the complete 18-inch wheel profile and do not substitute later disc or GM-converted spindle components.

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.

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 DS1023

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.