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Product details
Drilled-and-slotted rotors distinguish this Big Ford Bronco rear kit from the plain-face version. Black four-piston calipers and internal parking-brake shoes are selected together for the measured housing end. Disc brake system design and manufacturing are Wilwood Engineering’s focus. Bill Wood founded the Camarillo, California company in 1977; its range spans brake rotors, master cylinders, calipers, fittings, valves and brake lines for motorsport, specialized and street-performance applications. The choice of individual components depends on the complete brake system.
Technical Details
- Manufacturer part number: 140-13322-D
- 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 4.5 in; 5 x 114.3 mm; 5 x 5.5 in; 5 x 139.7 mm
- Stud-hole / clearance provision: 0.56 in; 14.22 mm; 0.64 in; 16.26 mm; diameter provision, not a thread designation
- Wheel diameter starting requirement: 15 in; 381 mm; verify the individual wheel against the installation drawing
- Rear axle-end interface: Big 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
- Rotor dimensions: 12.19 in; 309.63 mm outside diameter; 0.81 in; 20.57 mm thickness
- Rotor construction: Iron; Vented; SRP Drilled & Slotted
- Caliper assembly: Dynapro Lug Mount; 4 pistons per caliper; Forged Aluminium body; Lug mount
- Piston and finish specification: Stainless pistons; Black calipers; Black Powder Coat
Fitment & Compatibility
Compare the flange and register with DS1017 and confirm the 2.36-inch offset. Check this SRP rotor's listed pattern and stud-clearance provisions against the axle before arranging separate hoses and cables.
A maximum flange diameter of 6.61 inches and a 0.050-inch x 45-degree chamfer are specified for rotor clearance. The illustrated register is 2.88 inches; select the documented centering arrangement and match both axle offset and housing-end bolt pattern.
The installation reference identifies Big Ford Bronco rear applications with 3300-lb axle/11-inch drums for 1966–1975 and the listed 1976–1977 configurations. Verify the actual flange,2.36-inch offset and axle register.
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 DS1017
- Axle measurement worksheet
PMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.