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Product details
Red calipers, GT slotted rotors and an electric parking system form this Big Ford rear assembly. The 12.88 x 1.10-inch discs operate with four-piston XRS4R service brakes, while the separately controlled parking calipers are intended to hold the stationary vehicle. Bill Wood established Wilwood Engineering in 1977. From Camarillo, California, the company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications.
Technical Details
Kit contents and separate parts
- Manufacturer part number: 140-18295-R
- 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.
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: GT 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: Red 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
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 has supported brake and restoration projects for more than 20 years. Share your vehicle and installed chassis hardware with us for help selecting the correct brake package.
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
