Wilwood Rear Red Caliper/Plain-Rotor Package for Staggered Shocks, Big Ford New Style 2.50-Inch Offset; Axle-Conditional Lincoln Town Car 1990

This red Wilwood rear kit combines plain vented rotors with a staggered D154 caliper layout for the specified Big Ford New Style axle. Parking shoes provide mechanical holding inside the 12.19-inch rotor hats. The left caliper mounts ahead of the axle and the right behind, with a required 2.50-inch flange offset. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines. Its product range serves motorsport, street-performance, and specialized applications, with individual components selected to match the requirements of the complete brake system.

Technical Details

• Manufacturer part number: 140-12236-R
• Type: D154 Rear Parking Brake Kit
• Calipers: D154; 2 pistons per caliper; Red Powder Coat; floating mounting.
• Piston bores: 1.12, 1.12 inches; Stainless pistons. Included pad compound: BP-10.
• Rotors: 12.19-inch diameter × 0.81-inch width; Plain Face; Iron; Plain finish.
• Rear housing end: Big Ford New Style. Axle-flange offset: 2.50 inches.
• Included: paired hydraulic calipers, pads, rotor/hat assemblies, internal parking-shoe assemblies and mounting components.
• Hydraulic flex lines are separate. Master cylinder, booster and spindles are not included; retain or select suitable matching components.
• Conditional minimum wheel diameter: 16 inches. Verify the complete clearance drawing for barrel and spoke offset before purchase.

Fitment & Compatibility

Match DS863 to the actual bearing, housing and shock arrangement. Confirm the listed 1990 Lincoln Town Car application directly with Wilwood after measuring the axle; model and year do not identify a conversion's rear geometry. Check studs, flange diameter and clearance on both sides before selecting separate hoses and parking cables. Wheel fit remains conditional on the full 16-inch profile. Some 15-inch designs are possible only when the same template clears spokes and barrel.

Check the individual year, model, submodel and equipment conditions in the fitment table below before ordering.

Wilwood installation documents: Installation instructions; Technical bulletin.

PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle, axle or spindle details and wheel measurements for fitment help.

California Proposition 65 warning, 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.