Wilwood Red 11-Inch Drilled Rear Disc and Electric Parking Brake Package for New-Style Big Ford Axles with 2.36-Inch Offset

Red service and parking calipers work around drilled-and-slotted 11-inch rotor/hat assemblies in this low-profile rear conversion. The 2.36-inch axle offset and new-style Big Ford bearing flange determine bracket alignment; electrical controls are supplied. Wilwood Engineering, founded by Bill Wood in 1977, designs and manufactures disc brake systems from Camarillo, California. Its motorsport, street-performance and specialized product range spans calipers, brake rotors, master cylinders, valves, fittings and brake lines. A conversion must be considered as a complete brake system when selecting those parts.

Technical Details

• Manufacturer part number — 140-16129-DR; supplied as one rear axle brake kit.
• Parking-brake package — Two separate electric parking calipers, control unit, switch with pigtail and universal wiring harness included; vehicle electrical connections require installation.
• Rear axle interface — Big Ford New Style housing flange; 2.36 in; 59.94 mm axle offset. Measure the installed assembly.
• Minimum nominal wheel diameter — 14 in; 355.6 mm; full spoke/barrel clearance must be checked using the installation drawing.
• Hydraulic installation — Hydraulic lines and fittings are separate and must be selected for the vehicle; master cylinder not included; brake booster not included.
• Rotor dimensions — 11.00 in; 279.4 mm outside diameter; 0.81 in; 20.57 mm thick.
• Mechanical contents — Separate wheel hubs are not included; mounting hardware supplied; spindles not included.
• Rotor material and surface — Iron; vented; SRP Drilled & Slotted; surface finish Black Electro Coat.
• Hydraulic service calipers — Forged Dynapro Low Profile; 4 pistons per caliper; Forged Aluminium body; lug mounting; Stainless pistons.
• Supplied service pads — BP-10 compound; verify suitability for the intended operating conditions.
• Cataloged rotor/hat mounting-hole pattern — 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 bolt circle; cataloged stud-hole clearances 0.52 in; 13.21 mm. The existing hub or axle flange determines the vehicle wheel pattern and stud specification. These rotor/hat drillings do not convert that pattern.
• Caliper finish and port — Red Powder Coat; hydraulic inlet 1/8-27 NPT.

Fitment & Compatibility

Match the actual rear axle to the Big Ford New Style diagram and 2.36-inch offset before disassembly. Verify the bearing arrangement, axle register and wheel-bolt pattern independently, including any changes made during a previous axle conversion. Use the full 14-inch minimum wheel envelope for both caliper positions.

Vehicle fitment in the table below remains conditional on axle identity. Measure the housing flange, bearing/retention arrangement, register and offset rather than relying on vehicle year. For a 1990 Lincoln Town Car, identify the actual axle and confirm the specified interface; do not select this conversion from model and year alone.

Parking actuation is electric through a supplied controller, switch with pigtail, universal harness and two motor-driven calipers. The installer must provide suitable vehicle power/ground and ignition/accessory connections and check lead routing to DS1353. These additional calipers are for parking hold, not an emergency stop function.

Our team at PMB Performance can help compare the existing brakes with this kit’s requirements. Drawing on over 20 years of parts experience, we ask for the vehicle year, axle identification and wheel-clearance details.

Review the Installation instructions, Technical bulletin, EPB mounting and wiring instructions before selecting hardware or checking wheel clearance.

Manufacturer Warning

Applicable to brake pads only. 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.