Wilwood SRP Rear Parking Brakes with Undrilled Hats — Black Dynalite, Currie Old Big Ford, 12.19-inch

The braking faces are drilled and slotted, while the wheel-pattern areas remain blank. The supplied black powder-coated 4-piston calipers and 12.19-inch SRP drilled-and-slotted rotors are configured for Currie Big Ford Old Style, blank wheel-pattern hats. Wilwood Engineering began in 1977 under founder Bill Wood and is based in Camarillo, California. The company designs and manufactures disc brake systems and components for motorsport, street-performance and specialized vehicles. Calipers, rotors, master cylinders, valves, fittings and brake lines must be selected around the needs of the complete system.

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.

Check the actual wheel against the manufacturer template, including the inner barrel and back of the spokes. A nominal wheel diameter by itself does not guarantee clearance.

Use the complete vehicle row and its application notes below to check model year, trim and original brake equipment.

Technical Details

• Manufacturer part number: 140-7142-D.
• Calipers: 4 pistons; forged aluminum; stainless steel pistons.
• Caliper attachment: lug mount; 1/8-27 NPT hydraulic inlet.
• Caliper finish: Black Powder Coat.
• Wheel-pattern hat sections: blank; require machining for the actual axle and wheel bolt circle.
• 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.
• 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.
• 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.

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.

Manufacturer references

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

With over 20 years of experience, PMB Performance can help you work through the mounting and brake-system details before ordering. Include your vehicle information and any axle, hub or spindle changes when contacting us.

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