Wilwood Big Ford New-Style Rear Brake Package, Black Dynalite Calipers, 12.19-Inch Drilled/Slotted Rotors and Electronic Parking Brake

This rear kit adds 12.19-inch drilled/slotted rotor/hat assemblies to black four-piston Dynalite calipers and a complete electronic parking control system. The EPB motors require their own clearance envelope behind the rotor. Measure the axle flange and offset before installation, then review bracket clocking and the wheel drawing. The 2.50-inch Big Ford new-style specification is the controlling application detail. Wilwood Engineering was established in 1977 by Bill Wood in Camarillo, California. The company designs and manufactures disc-brake systems and components, from calipers and rotors to master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized installations. Each component must match the rest of the brake system.

Technical Details

• Manufacturer part number: 140-15843-D. Quantity: one kit for the stated axle/application.
• Rear housing interface: Big Ford New Style; axle offset: 2.50 in; 63.5 mm.
• No replacement wheel hubs are supplied; retain or provide the documented matching hub arrangement.
• Service caliper: Forged Dynalite Internal; 4 pistons; stainless piston material. Lug mounting, black powder coat finish.
• Published piston bores: 1.38, 1.38 inches. Supplied pad compound: BP-10.
• Rotor specification: 12.19-inch outside diameter × 0.81-inch thickness; SRP drilled & slotted faces. Iron construction; SRP Drilled Rotor & Hat design; published vane configuration: 32 V.
• Minimum nominal wheel diameter: 15 inches. The wheel must also clear the actual caliper and rotor profile in the installation drawing.
• Caliper hydraulic inlet: 1/8-27 NPT.
• Separate electronic parking calipers, controller, wiring harness and switch are included. EPB actuation is electrical; hydraulic service braking remains independent.
• Brake hoses are not included. Select suitable braided lines and fittings for the installation.
• Mounting hardware and the specified pads are included. Spindles, master cylinder and brake booster are not supplied.

Fitment & Compatibility

Application is controlled by the Big Ford new-style housing flange and a measured 2.50-inch axle offset. The application table lists a 1990 Lincoln Town Car, but the manufacturer does not currently confirm that model application. Do not order for a Town Car by year/model alone; verify the housing-end drawing, bearing retainer and offset first. Check axle-flange diameter, wheel seating, wheel profile and EPB motor clearance through suspension travel. The electronic parking system is for stationary parking hold, not an emergency stop brake. Mounting brackets must allow both service and parking calipers to clear the body and suspension. Use the complete application table below for the individual year, submodel, brake configuration and note attached to each entry.

PMB Performance brings 20+ years of parts and fitment experience to brake selection. Send the actual spindle or axle details, existing brake package and wheel measurements for help checking this combination.

Manufacturer documentation: Installation instructions; Technical bulletin.

Manufacturer Warning

Applicable to brake pads only: Wilwood warns of exposure to arsenic, cadmium, hexavalent chromium compounds, lead, nickel, cobalt and antimony trioxide, chemicals known to California to cause cancer or reproductive harm. More information: P65Warnings.ca.gov.