Wilwood Black AERO4 Rear Brake Conversion with 14-Inch Slotted Rotors and Electronic Parking, Small Ford 2.66-Inch Offset

Black AERO4 rear calipers and two-piece GT rotors fit the measured Small Ford 2.66-inch flange arrangement. Check offset and electrical routing. This conversion keeps hydraulic service braking and electric parking in separate calipers selected for the documented mounting arrangement. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components. Bill Wood founded the company in 1977. Its calipers, brake rotors, valves, master cylinders, brake lines and fittings serve street-performance, motorsport and specialized applications. Select each component according to the requirements of the complete braking system.

Technical Details

• Manufacturer part number: 140-16176
• Kit function: Rear Brake Kits - Street Performance; rear position
• Service calipers: 4-piston AERO4; Black Powder Coat
• Caliper mounting: Radial; piston material: stainless steel
• Rotor package: 14.00 × 1.10 inches; Spec-37 Iron; vented; GT Slotted
• Supplied service-pad compound: BP-20
• Hydraulic inlet: 1/8-27 NPT
• Rotor / hub bolt-circle specification: 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
• Housing / axle interface: Small Ford; axle offset 2.66 in
• Nominal wheel diameter reference: 18 in; verify the complete clearance drawing
• Hydraulic flexlines: Not included
• Included installation items: mounting hardware
• Not supplied: spindles, wheel hubs, master cylinder, brake booster
• Quantity: Sold as a kit.

Fitment & Compatibility

Measure 2.66 inches of axle offset at the Small Ford housing interface and check all flange and bearing-retainer dimensions before ordering. The Town Car table entry below is conditional on the actual axle configuration; do not select this kit by vehicle identity alone. AERO4 hydraulic calipers provide the service brake, while separate motor-operated parking calipers use the supplied controller and wiring harness. Electronic parking does not replace an emergency stopping system. Allow for wiring protection, the two-piece rotor envelope and separately sourced flexlines.

Use the fitment table below to check each listed year, model and brake configuration alongside these installation requirements.

Wilwood product specifications · Installation instructions · Technical bulletin

With over 20 years of parts and fitment experience, PMB Performance can help compare the actual axle flange, rotor relationship and hydraulic arrangement. Share measurements and photographs of the installed assembly before ordering.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.