Wilwood Front Mustang Stock-Offset GT Package (1994–2004) — Red Superlite 6R and 14-Inch Rotors

The red-caliper GT package is the 14-inch slotted version of this Mustang front conversion. It includes six-piston Superlite calipers, separate hats and BP-10 pads for the specified original-spindle installation. Wilwood Engineering designs and manufactures the disc brake systems and components used throughout its motorsport, street-performance and specialized product range. Bill Wood established Wilwood in 1977, and the company is based in Camarillo, California. Its calipers, brake rotors, valves, master cylinders, brake lines and fittings are selected according to the demands of the whole brake installation.

Technical Details

• Manufacturer part number: 140-9117-R
• Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
• Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
• Rotor/hat wheel-stud clearance pattern(s): 5 x 4.5 in; 5 x 114.3 mm; the existing hub/axle pattern is retained
• Hat/rotor stud-hole clearance: 0.580 in; 14.73 mm; this is not a wheel-stud thread designation
• Hydraulic hoses: not included; match the separate lines and fittings to the application
• Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
• Not included: master cylinder and brake booster
• Wheel clearance: 18-inch wheels may fit; check the complete manufacturer caliper/rotor template
• Quantity: sold as one axle kit
• Service calipers: 6-piston Forged Narrow Superlite 6R; Red Powder Coat; radial mounting
• Brake rotors: 14.00 x 1.25 inches; Spec-37 Iron; GT Slotted; vented
• Included pad compound: BP-10; pistons: stainless steel

Fitment & Compatibility

For the listed 1994–2004 Ford Mustang five-lug, stock-offset front spindles. Base and GT coverage is supplemented by specific Cobra, Bullitt and Mach I entries. Observe the independent-rear-suspension exclusions attached to particular 1999–2001 applications in the table; a trim name alone does not override those restrictions.

Use the 14-inch wheel-clearance drawing in DS515, then check the retained hub and hat seating. The 220-6458 front hose kit is separate. Confirm the original spindle and mounting-bolt arrangement before installing the radial caliper brackets.

Review the complete fitment table below before purchase, retaining the restrictions attached to the chosen vehicle.

Manufacturer Resources

• Wilwood kit specifications and wheel-clearance information
• Installation instructions and component list

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.

For fitment help, contact PMB Performance with your VIN and details of any axle, spindle or brake changes. Our team has over 20 years of experience checking parts and fitment, including the dimensions that a model-year search cannot establish.

Vehicle Applications

Application Notes

1. 14" Rotor
2. Line kit included (manufacturer): None
3. Front line-kit reference: 220-6458