Wilwood Black Dynalite Rear Brakes with Electric Parking Hold, Big Ford Bronco 2.36-Inch Axles and Plain 12.19-Inch Rotors

Black Dynalite service calipers operate plain-face 12.19-inch rear rotors in this Big Ford Bronco conversion. Separate motor-driven parking calipers are controlled electrically, while the 2.36-inch axle offset determines the installed rotor location. Wilwood Engineering began in 1977 under founder Bill Wood and is based in Camarillo, California. It designs and manufactures disc braking equipment for motorsport, specialized applications and street-performance vehicles. Calipers, brake rotors, master cylinders, valves, fittings and brake lines form part of the range and must match the requirements of the complete system.

Technical Details

• Manufacturer part number: 140-16138; supplied as one rear axle brake kit.
• Hydraulic installation: Hydraulic lines and fittings are separate and must be selected for the vehicle; master cylinder not included; brake booster not included.
• Mechanical contents: Separate wheel hubs are not included; mounting hardware supplied; spindles not included.
• Rotor dimensions: 12.19 in; 309.63 mm outside diameter; 0.81 in; 20.57 mm thick.
• Hydraulic service calipers: Forged Dynalite Internal; 4 pistons per caliper; Forged Aluminium body; lug mounting; Stainless pistons.
• Minimum nominal wheel diameter: 15 in; 381 mm; full spoke/barrel clearance must be checked using the installation drawing.
• Rear axle interface: Big Ford Bronco housing flange; 2.36 in; 59.94 mm axle offset. Measure the installed assembly.
• Caliper finish and port: Black Powder Coat; hydraulic inlet 1/8-27 NPT.
• Supplied service pads: BP-10 compound; verify suitability for the intended operating conditions.
• Parking-brake package: Two separate electric parking calipers, control unit, switch with pigtail and universal wiring harness included; vehicle electrical connections require installation.
• Cataloged rotor/hat mounting-hole pattern: 5 x 5.5 in; 5 x 139.7 mm bolt circle; cataloged stud-hole clearances 0.64 in; 16.26 mm. The existing hub or axle flange determines the vehicle wheel pattern and stud specification. These rotor/hat drillings do not convert that pattern.
• Rotor material and surface: Iron; vented; Plain Face; surface finish Plain.

Fitment & Compatibility

Use only an axle that matches the documented Big Ford Bronco flange and 2.36-inch offset. Rear-end names can conceal different bearing flanges, so measure the installed parts. Check the rotor register, studs, axle retention and complete wheel outline rather than relying on the nominal 15-inch wheel size. DS1411 identifies the 1966–1977 Ford Bronco 11 x 1.75-inch drum axle; choose this kit’s specific offset, not the alternative shown in the same manual.

Use the fitment table below together with a measured axle check. A model name alone does not establish conversion compatibility; compare the flange, axle offset, register and chosen wheel pattern. For a 1990 Lincoln Town Car, identify the actual axle and confirm the specified interface; do not select this conversion from model and year alone.

The EPB is a parking-hold system, not an emergency stopping brake. It includes a separate left/right motor-driven caliper pair, control unit, switch with pigtail and universal wiring harness. Vehicle power, ground, ignition/accessory connections and protected cable routing must be installed to DS1353; it is not a plug-in factory-harness replacement.

For help checking the installation, contact PMB Performance with the vehicle year and photographs of the existing brakes. Our more than 20 years of parts experience helps identify the details that model names alone cannot settle.

Review the Installation instructions, Technical bulletin, EPB mounting and wiring instructions before selecting hardware or checking wheel clearance.

Manufacturer Warning

Applicable to brake pads only. WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.