Wilwood Red Dynalite Five-Lug Front Hub Kit — 12.19-inch SRP, 1971–1980 Pinto / 1974–1978 Mustang II

A red-caliper SRP assembly changes the front brakes and converts the wheel mounting to five lugs. At the front axle, this kit pairs red powder-coated 4-piston calipers and 12.19-inch SRP drilled-and-slotted rotors with the mounting hardware for 1971–1980 Ford Pinto / 1974–1978 Mustang II. Based in Camarillo, California, Wilwood Engineering was founded by Bill Wood in 1977. It designs and manufactures disc brake systems for motorsport, street-performance and specialized applications, with a range including calipers, rotors, master cylinders, valves, fittings and brake lines. Selecting the mounting and hydraulic components together is part of building the complete brake system.

Technical Details

• Manufacturer part number: 140-7017-DR.
• Rotor dimensions: 12.19 in; 309.63 mm diameter x 0.81 in; 20.57 mm thick.
• Rotor construction: Iron; vented; SRP Drilled & Slotted friction surface.
• Wheel-size guide: 15 in; 381 mm minimum nominal diameter; verify actual template clearance.
• Calipers: 4 pistons; forged aluminum; stainless steel pistons.
• Caliper attachment: lug mount; 1/8-27 NPT hydraulic inlet.
• Caliper finish: Red Powder Coat.
• Supplied hub wheel bolt circles: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm.
• Included wheel stud thread: 1/2-20.
• Sold as one kit. Mounting hardware is included. Replacement hubs are included.
• Brake pads are included; use the compound and installation instructions specified for this rotor package.
• Spindles, master cylinder, brake booster and hydraulic brake lines are not included.

Package and installation requirements

• Wilwood marks this kit obsolete without identifying a replacement number on the current page. Confirm availability and the correct replacement with PMB Performance or Wilwood before ordering.
• The 0.74-inch track-width change is per side; confirm fender, suspension and wheel clearance.
• Wheel contact surfaces must be fully supported by the hub face. Where they overhang it, Wilwood requires its separately sold 6.60-inch-diameter x 0.20-inch steel spacer. For stamped-steel wheels that do not overhang, the instructions recommend the separate 6.15-inch-diameter x 0.09-inch hub shield. Verify the exact wheel with the installation instructions.

Fitment & Compatibility

The instructions identify 1971–1980 Ford Pinto and 1974–1978 Ford Mustang II front spindles. This kit includes five-lug hubs; it does not retain a factory four-lug wheel pattern. Wilwood states a 0.74-inch outward wheel-location change per side. Check wheel placement and clearance before choosing wheels.

Wheel selection requires the complete clearance profile in the instructions. Confirm radial and spoke clearance; do not rely on the minimum diameter alone.

Manufacturer references

• Wilwood product and configuration information
• Installation instructions

PMB Performance has more than 20 years of experience helping customers select brake components. Share the measurements and photos of your current setup so we can help check the application and the additional pieces needed.

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.