Wilwood Bronco New Style rear 12.88-inch Superlite brake kit laid out with black calipers, slotted rotors, internal parking-shoe assemblies and mounting parts
Wilwood Bronco New Style rear 12.88-inch Superlite brake kit assembly example, showing a black caliper positioned over the slotted rotor and mounting hat
Wilwood Bronco New Style rear 12.88-inch Superlite brake kit laid out with black calipers, slotted rotors, internal parking-shoe assemblies and mounting parts
Wilwood Bronco New Style rear 12.88-inch Superlite brake kit assembly example, showing a black caliper positioned over the slotted rotor and mounting hat

Wilwood Rear Superlite 4R Parking-Brake Kit for Ford Bronco New Style Axles, Black Calipers, GT-Slotted 12.88-Inch Rotors and 2.36-Inch Offset

SKU: 140-13665

$2,299.11 Sale
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Product details

Black Superlite 4R calipers combine with two-piece 12.88-inch GT rotors in this Bronco rear package. Iron parking-brake hats and internal shoe assemblies provide the mechanical parking system, with axle selection governed by the New Style housing flange and 2.36-inch offset. The kit comes from Wilwood Engineering of Camarillo, California, established in 1977 by Bill Wood. Wilwood designs and manufactures disc brake systems and components for motorsport, street-performance and specialized installations. Alongside calipers and brake rotors, its range includes master cylinders, valves, fittings and brake lines, all requiring selection around the complete system's operating requirements.

Technical Details

  • Manufacturer: Wilwood; manufacturer part number: 140-13665. Supplied quantity: Sold as a kit.
  • Application category: Rear Brake Kits - Street Performance. Axle/spindle category: Rear Kits. Brake function: Disc; Parking.
  • Separate wheel hubs included: No. Retain only the hub arrangement specified for this kit.
  • Mounting hardware included: Yes. Spindles included: No. Master cylinder included: No. Brake booster included: No.
  • Flexible brake lines included: No. Select the vehicle-end connection and routing separately.
  • Internal parking-shoe assemblies are included. The vehicle cable/clevis connection is separate; parking cable kit 330-9371 is a separately selected option, not included.
  • Wheel interface: 5 x 5.5 in; 5 x 139.7 mm. Rotor/hat wheel-stud clearance: 0.640 in; 16.26 mm.
  • Nominal minimum wheel diameter: 17 in; 431.8 mm. Verify the full wheel-clearance drawing; diameter alone does not establish barrel or spoke clearance.
  • Housing/spindle flange: Big Ford New Style Bronco. Flange/axle offset: 2.36 in; 59.94 mm.
  • Calipers: 4 stainless pistons per caliper; radial mounting; forged aluminium bodies. Color: Black. Finish: Black Powder Coat. Inlet thread: 1/8-27 NPT.
  • Caliper family: Forged Narrow Superlite 4R. Brake-pad compound: BP-10.
  • Rotor: 12.88 in; 327.15 mm outside diameter; 1.10 in; 27.94 mm thickness. Material: Spec-37 Iron. Construction: Vented. Friction-face style: GT Slotted.
  • Rotor-hat material: Iron. Hat offset: 1.540 inches; this hat dimension is separate from axle offset.
  • Rotor surface finish: Black Electro Coat.

Fitment & Compatibility

Measure the New Style bearing/flange arrangement and axle offset before ordering. The documented heavy-duty Bronco configuration normally uses the original 11-inch rear drum package. Check the 5x5.50 pattern and 17-inch wheel diagram; the kit does not supply brake hoses or parking cables.

Manufacturer Documents

With over 20 years of parts and fitment experience, PMB Performance can help check the brake configuration before you order. Include the vehicle information, installed axle or spindle and wheel dimensions in your enquiry.