Wilwood GT-Slotted One-Piece Rotor/Hat and Hub Kit, Red Superlite 6R Front Calipers, for Selected Full-Size Ford/Edsel/Mercury Cars

Red Superlite calipers, slotted iron rotor/hat castings and separate aluminum hubs make up this full-size front conversion. The one-piece rotor/hat construction remains distinct from a rotor ring bolted to an aluminum hat, even though both kit types use the same nominal 12.88-inch diameter. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. It develops disc brake systems and components, designing and manufacturing calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications. A correct conversion matches those individual components to the complete braking system.

Technical Details

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

• Manufacturer: Wilwood; manufacturer part number: 140-13654-R. 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.

• Rotor: 12.88 in; 327.15 mm outside diameter; 1.10 in; 27.94 mm thickness. Material: Iron. Construction: Vented. Friction-face style: GT Slotted.
• Rotor surface finish: Black Electro Coat.

• 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

Use only the documented factory drum-spindle arrangement for the exact car below. Check the hub's selected bolt circle, bearing seats and +0.03-inch offset. Complete the hydraulic installation with suitable separately purchased flexlines and verify wheel clearance through DS1050.

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.

Manufacturer Documents

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

PMB Performance brings over 20 years of parts and brake-fitment experience to helping you select the correct configuration. Send the vehicle details and measured brake interfaces if you need help confirming this kit.