Wilwood Red Small Ford Rear Parking-Brake Kit — 2.66-inch Offset and 12.19-inch Drilled/Slotted Rotors

The red SRP combination supplies both rear disc braking and a separate internal parking brake. 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 Small Ford, 2.66-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: 140-7143-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: Small Ford.
• Axle flange offset: 2.66 in; 67.56 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

• One-piece vented iron rotors include an inner drum for the parking shoes. The service caliper operates the disc face; parking is provided by the separate cable-operated mechanism.
• The package needs separately selected hoses and parking cables. Wilwood’s universal 330-9371 cable reference is not a promise of installation without modification.

Fitment & Compatibility

Small Ford housing ends use this kit’s 2.66-inch axle-offset arrangement. They should not be confused with either old-style Big Ford ends or the later Torino flange. Identify the end from the mounting dimensions in DS423, then measure the installed axle offset; an axle sold as a Ford replacement may have different ends. The internal-shoe parking brake is housed within the one-piece drum/rotor rather than operated by the service caliper. Check the planned cable connection and its operation when laying out the installation. The table’s 1990 Lincoln Town Car listing is still subject to these Small Ford measurements. Finally, use the wheel template on the actual wheels: the listed nominal diameter alone does not establish clearance around the four-piston caliper.

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