Wilwood Old-Style Big Ford Red Caliper Rear Kit — 12.19-inch SRP Rotors, Parking Brake, 2.36-inch Offset

Red calipers and SRP rotors provide a matched disc-and-parking-brake package for the measured Ford 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 Old Style, 2.36-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: 140-7139-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.
• 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

• Service braking uses the four-piston calipers. A separate set of shoes works inside the drum sections of the one-piece rotors to hold the vehicle when parked.
• Allow for hydraulic hoses and a parking-cable connection in addition to this kit. Wilwood lists universal cable assembly 330-9371, which may need vehicle or cable modifications.

Fitment & Compatibility

Choose this package by the old-style Big Ford housing end and the measured 2.36-inch axle offset. The word Ford alone is not sufficient: new-style/Torino and Small Ford ends use different bracket arrangements. Compare the mounting flange with DS419 and measure from the axle flange using Wilwood’s worksheet before dismantling the existing brakes. The application list includes a 1990 Lincoln Town Car row, but a changed axle assembly must still satisfy the specified end and offset. This conversion provides rear service discs plus an independent internal-shoe parking brake. Plan the cable connection as part of the installation; the brake kit does not include the cable assembly or hydraulic flexlines. A matching wheel bolt circle is only one check and does not establish housing compatibility.

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