Wilwood Red Rear Parking-Brake Conversion for Old-Style Currie Ford — 12.19-inch SRP, Blank Wheel Patterns

Red calipers are supplied with patterned discs that still require the wheel bolt circle to be machined. 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 Currie Big Ford Old Style, blank wheel-pattern hats. 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: 140-7142-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.
• Axle flange offset: 2.36 in; 59.94 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.
• Wheel-pattern hat sections: blank; require machining for the actual axle and wheel bolt circle.
• 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 one-piece iron drum/rotors incorporate the parking-brake drums; the internal shoes provide a mechanical parking brake independently of the four-piston service calipers.
• Parking-brake cables and hydraulic brake lines are separate. Wilwood references universal cable kit 330-9371; installation can require cable or vehicle modifications.
• The wheel-pattern sections are supplied blank. A qualified machine shop must establish the correct wheel bolt circle and stud clearance before installation; this is separate from the plain or SRP rotor friction-surface finish.

Fitment & Compatibility

This Currie package starts with an old-style Big Ford end and 2.36-inch axle offset, then leaves the wheel bolt circle for final machining. The blank hat section is a manufacturing provision for the wheel pattern, not a description of the disc friction face. Even the drilled-and-slotted SRP versions have undrilled wheel-mounting sections. Establish the intended axle pattern, stud clearance and machining plan before ordering; do not attempt to install an undrilled rotor directly on the axle. DS422 and the axle worksheet identify the mounting dimensions to verify. A Town Car application row does not remove the Currie-end and machining requirements. The finished installation also needs correctly connected parking cables and suitable hydraulic hoses, neither of which is supplied in this brake package.

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

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. Currie kits include blank hats (no wheel bolt circle).
2. Kit may fit some 15" wheels. Check wheel clearance diagram in kit installation instructions before purchase.
3. Line kit included (manufacturer): None