Wilwood Rear Dynalite Disc and Electric Parking Brake Kit, Small Ford Bronco Flange, 2.36-Inch Offset, Black Calipers and Plain 12.19-Inch Rotors

This small-bearing Ford Bronco rear conversion uses black Dynalite service calipers and plain 12.19-inch rotors. Independent EPB calipers and their controls add parking hold, with the kit selected for a 2.36-inch-offset axle. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. The range includes calipers, rotors, master cylinders, valves, fittings and brake lines, chosen to suit the mounting and hydraulic requirements of the complete system.

Technical Details

• Manufacturer part number: 140-16146; supplied as one rear axle brake kit.
• Rotor material and surface: Iron; vented; Plain Face; surface finish Plain.
• Caliper finish and port: Black Powder Coat; hydraulic inlet 1/8-27 NPT.
• Hydraulic installation: Hydraulic lines and fittings are separate and must be selected for the vehicle; master cylinder not included; brake booster not included.
• Rear axle interface: Small Ford Bronco housing flange; 2.36 in; 59.94 mm axle offset. Measure the installed assembly.
• Mechanical contents: Separate wheel hubs are not included; mounting hardware supplied; spindles not included.
• Parking-brake package: Two separate electric parking calipers, control unit, switch with pigtail and universal wiring harness included; vehicle electrical connections require installation.
• Rotor dimensions: 12.19 in; 309.63 mm outside diameter; 0.81 in; 20.57 mm thick.
• 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.
• Minimum nominal wheel diameter: 15 in; 381 mm; full spoke/barrel clearance must be checked using the installation drawing.
• Supplied service pads: BP-10 compound; verify suitability for the intended operating conditions.
• Hydraulic service calipers: Forged Dynalite Internal; 4 pistons per caliper; Forged Aluminium body; lug mounting; Stainless pistons.

Fitment & Compatibility

Use only an axle that matches the documented Small 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.

Review the fitment table below after identifying the rear axle. Confirm housing-flange dimensions, retention hardware, offset, register and wheel pattern against the kit drawing. 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.

Parking actuation is electric through a supplied controller, switch with pigtail, universal harness and two motor-driven calipers. The installer must provide suitable vehicle power/ground and ignition/accessory connections and check lead routing to DS1353. These additional calipers are for parking hold, not an emergency stop function.

Contact PMB Performance if the installed hardware differs from the documented arrangement. More than 20 years of parts experience informs our fitment review; photographs and measured dimensions are particularly useful.

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.