Wilwood Plain Rear Parking Rotors with Polished Dynalite Calipers — 12.19-inch, Old Big Ford 2.36-inch Offset

A plain rotor face contrasts with polished calipers on the old-style Big Ford rear assembly. Its polished 4-piston calipers and 12.19-inch plain-face rotors are assembled around the requirements of Big Ford Old Style, 2.36-inch offset. Wilwood Engineering, founded by Bill Wood in 1977, designs and manufactures disc brake systems in Camarillo, California. The range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications, with each component chosen to suit the complete brake system.

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.

Print and use the manufacturer wheel template at its specified scale. Check the barrel, spoke shape and offset on the wheels that will actually be used.

Read the full application entry below, including the brake, spindle and numbered-note fields that apply to that vehicle.

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.

Technical Details

• Manufacturer part number: 140-7139-P.
• Calipers: 4 pistons; forged aluminum; stainless steel pistons.
• Caliper attachment: lug mount; 1/8-27 NPT hydraulic inlet.
• Caliper finish: Polished aluminum.
• 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.
• Rotor dimensions: 12.19 in; 309.63 mm diameter x 0.81 in; 20.57 mm thick.
• Rotor construction: Iron; vented; Plain Face 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.
• 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.

Manufacturer references

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

A vehicle that has already been modified needs a hardware check as well as a model-year check. PMB Performance offers over 20 years of experience to help compare the axle, spindle, wheel and brake details before you order.

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