Wilwood Red-Caliper Rear Parking Brakes — 2.50-inch Big Ford New Style, 12.19-inch Drilled/Slotted Rotors

Red four-piston calipers distinguish the patterned-disc package for the 2.50-inch Torino-style end. At the rear axle, this kit pairs red powder-coated 4-piston calipers and 12.19-inch SRP drilled-and-slotted rotors with the mounting hardware for Big Ford New Style, 2.50-inch offset. 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: 140-7140-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.
• Housing/flange arrangement: Big Ford New Style.
• Axle flange offset: 2.50 in; 63.5 mm.
• 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.
• Rotor/hat wheel-stud clearance patterns: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; 5 x 5 in; 5 x 127 mm.
• Rotor/hat stud-hole clearance diameters: 0.52 in; 13.21 mm. These are hole sizes, not wheel-stud thread specifications.
• The rotor/hat drilling does not change the vehicle hub or axle wheel bolt pattern.
• Sold as one kit. Mounting hardware is included. Hubs are not 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

• The rear rotor incorporates a parking drum with internal mechanical shoes. This arrangement keeps the parking function independent of hydraulic pressure at the Dynalite caliper.
• Parking cables and flexible brake lines are not supplied. The referenced universal cable kit is 330-9371; its final fit may involve adapting the cable or the vehicle.

Fitment & Compatibility

The decisive measurement for this Big Ford new-style/Torino package is a 2.50-inch axle offset. Do not substitute a new-style kit intended for the 2.36-inch arrangement simply because the housing flange appears similar. DS420 shows the correct mounting stack and wheel-clearance profile. Verify those dimensions on the installed axle, including any aftermarket axle shafts or replacement housing ends. The supplied drum/rotors contain a mechanical parking-brake mechanism, so cable travel and routing also need to be resolved before the vehicle is returned to service. The 1990 Town Car application shown below remains conditional on the specified hardware. Have the housing-end measurements available when asking PMB Performance to help confirm a modified rear axle.

The listed applications below retain their equipment qualifiers. Check the matching row and each referenced note before selecting the kit.

Manufacturer references

• Wilwood product and configuration information
• Installation instructions
• Technical bulletin

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.

Vehicle Applications

Application Notes

1. Kit may fit some 15" wheels. Check wheel clearance diagram in kit installation instructions before purchase.
2. Line kit included (manufacturer): None