Wilwood Drilled Front Disc/Hub Conversion for Selected Full-Size Ford/Edsel/Mercury Cars, Black Superlite Six-Piston Calipers and 12.88-Inch Rotors

Drilled-and-slotted 12.88-inch rotors attach to separate hats and hubs in this full-size front conversion. Black radial-mount Superlite calipers operate the service brakes, while the retained factory drum spindle determines the required bearing and mounting arrangement. Wilwood Engineering's product range serves motorsport, street-performance and specialized brake applications. Founded in 1977 by Bill Wood and based in Camarillo, California, the company designs and manufactures disc brake systems, calipers, rotors, master cylinders, valves, fittings and brake lines. Individual components must be selected to match the complete system rather than by appearance alone.

Technical Details

• Rotor: 12.88 in; 327.15 mm outside diameter; 1.10 in; 27.94 mm thickness. Material: Spec-37 Iron. Construction: Vented. Friction-face style: SRP Drilled & Slotted.
• Rotor-hat material: Aluminum. Hat offset: 1.750 inches; this hat dimension is separate from axle offset.
• Rotor surface finish: Black Electro Coat.

• Manufacturer: Wilwood; manufacturer part number: 140-13630-D. Supplied quantity: Sold as a kit.
• Application category: Front Brake Kits - Street Performance. Axle/spindle category: Front Kits. Brake function: Disc.
• Separate wheel hubs included: Yes.
• Mounting hardware included: Yes. Spindles included: No. Master cylinder included: No. Brake booster included: No.
• Flexible brake lines included: No. Select the vehicle-end connection and routing separately.
• Additional installation parts: 220-8307; 220-7699; 220-12168.

• Calipers: 6 stainless pistons per caliper; radial mounting; forged aluminium bodies. Color: Black. Finish: Black Powder Coat. Inlet thread: 1/8-27 NPT.
• Caliper family: Forged Narrow Superlite 6R. Brake-pad compound: BP-10.

• Wheel interface: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm. Wheel-stud specification: 1/2-20 in.
• Nominal minimum wheel diameter: 17 in; 431.8 mm. Verify the full wheel-clearance drawing; diameter alone does not establish barrel or spoke clearance.

Fitment & Compatibility

Compare the installed spindle with the documented Ford, Edsel or Mercury application below. Check the +0.03-inch listed hub offset and chosen wheel pattern when assessing tire/fender position. The kit does not supply flexlines; select a recommended length and confirm routing through full travel.

Separate front flexline references are 220-8307, 220-7699 and 220-12168; select the length and vehicle-end connection appropriate to the chassis. Listed hub offset is +0.03 inch per side.

Use the fitment table below for the complete model, year, submodel and brake-option conditions; every listed condition must match the installed vehicle.

Manufacturer Documents

• Wilwood product specifications and wheel-clearance drawing
• Installation instructions

For help matching the conversion to your existing hardware, contact PMB Performance with the vehicle details and the relevant measurements. Our parts and fitment work draws on over 20 years of experience.