Wilwood Red Front Superlite 6R Conversion with 14-Inch SRP Rotors, Bronco Disc Spindles (1976–1977)

A 1.75/1.25/1.25-inch staggered bore arrangement identifies the six-piston red Superlite calipers in this front package. They operate on 14-inch drilled-and-slotted rotors with aluminum hats for the 1976–1977 Bronco Dana 44 factory-disc spindle. Founded by Bill Wood in 1977, Wilwood Engineering designs and manufactures disc brake systems from Camarillo, California. Its calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications. Individual components must be selected for the complete brake system.

Technical Details

• Manufacturer part number: 140-13330-DR
• Application and package: Front Brake Kits - Street Performance; Front Kits; Disc; Sold as a kit.
• Rotor dimensions: 14.00 in; 355.6 mm outside diameter; 1.25 in; 31.75 mm thickness
• Rotor construction: Spec-37 Iron; Vented; SRP Drilled & Slotted
• Caliper assembly: Forged Narrow Superlite 6R; 6 pistons per caliper; Forged Aluminium body; Radial mount
• Piston and finish specification: Stainless pistons; Red calipers; Red 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
• 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

Retain the compatible Bronco hub and check the radial bracket against the factory Dana 44 disc-spindle mounting points. DS1024 requires the documented shield alteration. GM-converted spindle components are excluded, and the included flexlines must clear the steering route.

Documented model groups, subject to each year, submodel and spindle/axle qualification: Ford Bronco.

For 1976–1977 Bronco Dana 44 factory-disc spindles only. GM disc-brake/spindle conversion components are excluded.

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

Kit will not work with GM Disc Brake / Spindle components.

Manufacturer References

• Wilwood exact kit specifications
• Wilwood installation instructions DS1024

PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.

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