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Product details
Drilled/slotted 12.88-inch discs are shared by the XRS4R service calipers and separate EPB calipers in this black Big Ford kit. The electric parking package includes its control unit, switch and universal harness, requiring a planned electrical installation rather than parking-cable routing. Founded by Bill Wood in 1977 and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Its components include calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to suit the complete brake system.
Technical Details
Rotors and mounting dimensions
- Rotors: 12.88 in; 327.15 mm diameter x 1.10 in; 27.94 mm thick; vented Spec-37 Iron
- Friction faces: SRP Drilled & Slotted
- Rotor coating/finish: Black Electro Coat
- Internal vanes: 48 curved
- Hats: Aluminum; Black E-Coat; 2.035-inch hat offset
- Rotor/hat wheel-stud clearance patterns: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; 5 x 5 in; 5 x 127 mm
- Stud specification: 1/2-inch wheel studs (hat clearance; verify existing axle studs)
Calipers and pads
- Calipers: XRS4R; 4 pistons
- Caliper finish: Black Powder Coat
- Body construction: Forged aluminum
- Pistons: stainless
- Mounting: radial
- Hydraulic inlet: 1/8-27 NPT
- Included pad compound: BP-10
- Listed piston bore sizes: 1.12 / 1.12 in
Kit contents and separate parts
- Manufacturer part number: 140-18295-D
- Supply: one brake kit; components for both sides of the axle
- Mounting hardware: included
- Hubs: not included
- Spindles, master cylinder and brake booster: not included
- Brake flexlines: not included
- Axle housing flange: Big Ford New Style
- Required axle/hub offset: 2.50 in; 63.5 mm
- Electric parking calipers, switch with pigtail, universal harness and control unit: included
Fitment & Compatibility
For Big Ford New Style rear axle flanges with the specified 2.50-inch offset. Confirm bearing diameter, axle register and flange bolt spacing with the linked worksheet, including on the listed 1990 Lincoln Town Car rear-drum application. This 12.88-inch version supplies separate electric parking calipers and their controller, switch and universal harness. Route and mount the electrical system as the instructions specify. It provides parking restraint, not emergency braking while the vehicle is moving. Purchase the service-brake flexlines separately and check the wheel template. Consult the fitment table below for the individual year, model and equipment details. Nominal minimum wheel diameter: 17 in; 431.8 mm. The linked wheel-clearance diagram must confirm barrel and spoke clearance; wheel diameter alone does not guarantee fit.
Installation documents
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.
PMB Performance brings more than 20 years of brake and restoration experience to parts selection. Contact us with the installed spindle or axle details if you need help matching this kit.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1990 | Lincoln | Town Car | All | Disc | Drum | Rear Kit | 1 |
Application Notes
- Line kit included (manufacturer): None