Wilwood Rear Red D154/SRP Parking Brake Conversion, Staggered Shock Layout, Big Ford New Style 2.50-Inch Axle Offset; Conditional 1990 Lincoln Town Car

Red D154 calipers occupy staggered positions around the rear axle in this Wilwood Big Ford New Style package. The right caliper is rearward and the left forward, with drilled/slotted 12.19-inch rotors and internal parking shoes. The 2.50-inch offset and shock layout must match the actual rear end, including for the conditional 1990 Town Car entry. 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-DR
• 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; SRP Drilled & Slotted; Iron; Black Electro Coat 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 the two bracket positions in DS863 to the vehicle's staggered shocks. The right service caliper runs rearward of the axle and the left forward, so inspect hose and suspension space on both sides separately. Measure the New Style flange, bearing and offset, and obtain confirmation from Wilwood for the listed 1990 Lincoln Town Car. The rotor hat must seat correctly over the axle flange and studs before parking-shoe adjustment. Provide an independent cable system with restrained routing and sufficient release, plus suitable hydraulic hoses. Compare the complete conditional 16-inch wheel profile around both calipers. Some 15-inch wheels may fit only when their spoke and barrel shape passes that drawing check.

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.