Wilwood GT-Slotted Dynamic Front Brake Package, Red SX6R Calipers, Ford Mustang (2015–2023) and Specified Ridetech Falcon/Comet/Mustang/F-100 Conversions

The red GT configuration uses 15-inch directional rotor rings, dynamic lug-drive hats and SX6R service calipers. It retains the matched vehicle hub and supplies the brake brackets, pads and dedicated front flexlines for the documented conversion. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc braking systems and components for street-performance, motorsport and specialized use. Its calipers, rotors, master cylinders, valves, fittings and brake lines are chosen around the hydraulic, mounting and balance needs of a complete system.

Technical Details

• Manufacturer part number: 140-14925-R.
• Hat wheel-stud clearance diameter: 0.630 in; 16.00 mm.
• Nominal minimum wheel diameter: 19 in; 482.6 mm; verify full spoke and barrel clearance using the kit drawing.
• Rotor mounting hat: aluminum; Type III Anodize; hat offset 1.370 in; dynamic lug drive.
• Mechanical package contents: no separate hubs included; mounting hardware included: Yes; spindles included: No.
• Hydraulic package contents: brake lines included: Yes; master cylinder included: No; booster included: No.
• Flexline specification: Line kit included (manufacturer): 220-13912 (14.00 in); Front line-kit reference: 220-13912.
• Brake function and supply: Front Brake Kits - Street Performance; Disc braking; front axle; Sold as a kit.
• Rotor dimensions: outside diameter 15.00 in; 381 mm; thickness 1.25 in; 31.75 mm.
• Rotor construction and friction surface: Spec-37 Iron; Vented; GT Slotted; surface finish: Black Electro Coat.
• Service caliper assembly: SX6R; 6 pistons in each caliper; Stainless pistons; Forged Aluminium body; Radial mounting.
• Caliper color, finish and hydraulic inlet: Red; Red Powder Coat; inlet 1/8-27 NPT.
• Supplied pad compound: PM - ProMatrix.
• Wheel bolt circle: 5 x 4.5 in; 5 x 114.3 mm.

Fitment & Compatibility

Confirm the exact Mustang production row or the applicable Ridetech hub-spindle requirement for Falcon, Comet, F-100 and earlier Mustang. The supplied Mustang-pattern hoses do not establish universal chassis-end fit. Check the wheel envelope and routing through steering and suspension movement.

Models represented in the detailed applications: Falcon, Comet, Mustang, F-100. Each is subject to its individual year, trim and brake/suspension condition. Use the fitment table below to confirm year, model, trim and brake or suspension options.

Choose any alternative flexline for the actual route and chassis fittings, with enough travel and the correct flare connections.

With more than 20 years of parts experience, PMB Performance can help review the specified brake arrangement. Include the vehicle year and details of any hub, spindle or suspension changes.

Check the Installation instructions for the full assembly and wheel-clearance requirements.

Manufacturer Warning

Applicable to 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.