Wilwood Rear Black Superlite Parking Brake Kit, 14-Inch GT Rotors for Small Ford Bronco Axle Ends with 2.36-Inch Offset

A 14-inch diameter and 1.10-inch thickness distinguish the GT rotor rings in this Small Ford Bronco rear conversion. Black Superlite 4R calipers provide the four-piston hydraulic brake, while iron hats house the cable-operated parking shoes. Wilwood Engineering designs and builds disc brake systems in Camarillo, California. Bill Wood established the company in 1977; it supplies brake rotors, calipers, master cylinders, valves, fittings and lines for specialized applications, street performance and motorsport. The complete brake system determines which individual components are appropriate.

Technical Details

• Manufacturer part number: 140-13332
• Application and package: Rear Brake Kits - Street Performance; Rear Kits; Disc; Parking; Sold as a kit.
• 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
• Rear axle-end interface: Small Ford Bronco; axle/flange offset 2.36 in; 59.94 mm
• Included mechanical components: Mounting hardware: Yes; hub(s): No; spindle(s): No
• Hydraulic components supplied: Master cylinder: No; brake booster: No; brake lines: No
• Specified pad compound: BP-10
• Separate rotor-hat specification: Iron; Black E-Coat; offset 1.540 inch; part 170-13326
• Rotor dimensions: 14.00 in; 355.6 mm outside diameter; 1.10 in; 27.94 mm thickness
• Rotor construction: Spec-37 Iron; Vented; GT Slotted
• Caliper assembly: Forged Narrow Superlite 4R; 4 pistons per caliper; Forged Aluminium body; Radial mount
• Piston and finish specification: Stainless pistons; Black calipers; Black Powder Coat

Fitment & Compatibility

Allow room for the complete 14-inch rotor and radial caliper envelope when checking the wheel; the published starting diameter is 18 inches. The housing must have the Small Ford bolt pattern and a measured 2.36-inch axle offset, with the rotor hat centered on the correct register.

The installation drawing specifies a 2.88-inch axle register and the corresponding centering-adapter arrangement. Check the housing pattern and axle offset, then confirm the flange fits within the 6.61-inch diameter limit with its 0.050-inch x 45-degree chamfer.

The installation reference identifies Small Ford Bronco rear applications with 2700-lb axle/10-inch drums for 1966–1973 and 2900-lb axle/10-inch drums for 1974–1975. The measured2.36-inch offset and actual housing flange still govern selection.

Hydraulic hoses/fittings and parking-brake cables, adapters and cable hardware are not included. Choose a compatible cable arrangement for the internal parking brake; universal cable systems may require vehicle or cable modifications.

Manufacturer References

• Wilwood exact kit specifications
• Wilwood installation instructions DS1027
• Axle measurement worksheet

With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.