Wilwood Bronco New Style rear 12.88-inch Superlite brake kit laid out with black calipers, drilled and 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 drilled and slotted rotor and mounting hat
Wilwood Bronco New Style rear 12.88-inch Superlite brake kit laid out with black calipers, drilled and 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 drilled and slotted rotor and mounting hat

Wilwood Black Superlite Rear Disc/Parking Conversion for Bronco Big Ford New Style Ends, Drilled 12.88-Inch Rotors and 2.36-Inch Axle Offset

SKU: 140-13665-D

$2,299.11 Sale
Shipping calculated at checkout.

Fitment questions?

Call (855) 786-7101 or text (801) 304-3141.
Real people. Real answers.

Shipping policyRefund policy

Product details

Drilled-and-slotted rotor rings replace the GT rings in this black-caliper Bronco parking-brake kit. The radial Superlite 4R calipers handle service braking, while the supplied internal-shoe assemblies act inside the iron hats for mechanical parking. Bill Wood established Wilwood Engineering in 1977; the company is based in Camarillo, California. Its disc brake design and manufacturing range covers calipers, rotors, master cylinders, valves, fittings and brake lines, as well as complete systems. Those products serve motorsport, street-performance and specialized applications, with the individual components selected to match the braking system as a whole.

Technical Details

  • 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.
  • Manufacturer: Wilwood; manufacturer part number: 140-13665-D. 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.
  • 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: SRP Drilled & Slotted.
  • Rotor-hat material: Iron. Hat offset: 1.540 inches; this hat dimension is separate from axle offset.
  • Rotor surface finish: Black Electro Coat.
  • 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.

Fitment & Compatibility

Check the housing-end pattern, bearing and 2.36-inch offset against DS1044. The 2.00-inch Big Ford Bronco kit is a different application. Confirm wheel clearance around the 12.88-inch brake package and obtain compatible flexlines and cable/clevis hardware separately.

Manufacturer Documents

For help matching the conversion to your existing hardware, contact PMB Performance with the vehicle details and the relevant measurements. Our parts and fitment work draws on over 20 years of experience.