Wilwood Small Ford Bronco 2.36-inch-offset rear parking-brake parts layout with black Superlite 4R calipers, 12.88-inch drilled-and-slotted rotors, internal drum parking-brake assemblies, pads and mounting hardware
Wilwood Small Ford Bronco 2.36-inch-offset rear parking-brake single-side assembly showing a black Superlite 4R caliper beside a 12.88-inch drilled-and-slotted rotor
Wilwood Small Ford Bronco 2.36-inch-offset rear parking-brake parts layout with black Superlite 4R calipers, 12.88-inch drilled-and-slotted rotors, internal drum parking-brake assemblies, pads and mounting hardware
Wilwood Small Ford Bronco 2.36-inch-offset rear parking-brake single-side assembly showing a black Superlite 4R caliper beside a 12.88-inch drilled-and-slotted rotor

Wilwood Black Rear Superlite Brake Conversion with 12.88-Inch SRP Rotors, Bronco Small Ford 2.36-Inch Offset

SKU: 140-13321-D

$2,299.11 Sale
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Product details

Drilled-and-slotted rotor rings, black Superlite calipers and internal parking-brake hardware form this Bronco-pattern rear conversion. The radial brackets are selected for Small Ford housing ends. Wilwood Engineering is a Camarillo, California manufacturer founded by Bill Wood in 1977. Disc brake design and manufacturing extend across calipers, brake rotors, master cylinders, valves, fittings and brake lines. Parts for street-performance, specialized applications and motorsport must be selected to meet the requirements of the complete brake system.

Technical Details

  • Manufacturer part number: 140-13321-D
  • Application and package: Rear Brake Kits - Street Performance; Rear Kits; Disc; Parking; Sold as a kit.
  • 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
  • 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: 12.88 in; 327.15 mm outside diameter; 1.10 in; 27.94 mm thickness
  • Rotor construction: Spec-37 Iron; Vented; SRP Drilled & 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
  • Hydraulic inlet: 1/8-27 NPT
  • Wheel bolt pattern(s): 5 x 5.5 in; 5 x 139.7 mm

Fitment & Compatibility

Measure the axle flange, register and 2.36-inch offset using DS1016. Retain the documented 5 x 5.50-inch wheel pattern and check the complete rotor-and-caliper envelope inside the wheel.

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

PMB Performance can help identify the required brake component with over 20 years of parts experience. Send the kit details and original-part measurements.