Wilwood Rear Dynapro Lug-Drive Drag Brake Kit, Big Ford New Style 2.50-Inch Offset, Lincoln Town Car (1990)

This Wilwood rear drag kit uses one four-piston Dynapro caliper at each wheel and 11.44-inch drilled Super Alloy rotors. The rings engage separate lug-drive hats for the Big Ford New Style housing end with 2.50-inch axle offset. The listed 1990 Town Car application requires measurement of the actual race-axle hardware; it does not establish an original-axle bolt-on conversion. 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 for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12546-D
• Type: Dynapro SA Lug Drive Dynamic Rear Drag Brake Kit
• Calipers: Dynapro Lug Mount; 4 pistons per caliper; Type III Anodize.
• Caliper bore sizes: 1.75, 1.75 inches. Piston type: Stainless.
• Included pad compound: BP-28.
• Rotors: 11.44-inch diameter × 0.35-inch thickness; Drilled; Super Alloy; Plain surface; solid, unvented.
• Rear housing end: Big Ford New Style.
• Required axle flange offset: 2.50 inches.
• Wheel bolt circles: 5 X 4.50; 5 X 4.75; 5 X 5.00 inches.
• Included: paired calipers, pads, rotors, mounting brackets and assembly hardware, rotor hats.
• Hydraulic lines and fittings selected separately. No master cylinder, booster or spindles are supplied.
• Conditional wheel screening size: 15 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.
• Wheel-stud selection: half-inch wheel studs as specified by the installation drawing; the selected hat has 0.520-inch clearance holes.
• Axle-flange limit: 6.29-inch maximum outside diameter with the specified 0.050-inch × 45-degree chamfer. Match the register and stud configuration to the exact installation drawing.

Fitment & Compatibility

Compare the housing flange, bearing diameter, register and measured offset with DS908 and the worksheet. Check the selected wheel-stud pattern and dynamic-mount hardware before ordering. The 0.35-inch-thick solid rotor is a drag-racing configuration rather than a vented street rotor. Confirm vehicle duty, hydraulic balance and actual wheel clearance with the completed axle installation. Suitable hydraulic lines are selected separately.

Match the individual model, year, submodel and brake configuration in the fitment table below.

Wilwood installation documents: Installation instructions; Technical bulletin.

PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle details and installed brake hardware for help confirming the correct arrangement.

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.