Wilwood Rear Big Ford New Style EPB Brakes (2.50-Inch Offset) — Red Superlite with 12.88-Inch GT Rotors

The red GT-slotted version equips a compatible Big Ford New Style rear axle with Superlite brakes and EPB hardware. Dedicated parking calipers hold the vehicle when stationary, while the 12.88-inch service rotors work with four-piston hydraulic calipers. Wilwood Engineering designs and manufactures the disc brake systems and components used throughout its motorsport, street-performance and specialized product range. Bill Wood established Wilwood in 1977, and the company is based in Camarillo, California. Its calipers, brake rotors, valves, master cylinders, brake lines and fittings are selected according to the demands of the whole brake installation.

Technical Details

• Manufacturer part number: 140-18152-R
• Rotor specification: Spec-37 Iron, GT Slotted, vented; 12.88 x 1.10 inches
• Caliper specification: 4-piston Forged Narrow Superlite 4R in Red Powder Coat; radial mount
• Included service pad compound: BP-10; Stainless pistons
• Caliper body material: Forged aluminum
• Hydraulic inlet: 1/8-27 NPT
• Rotor/hat wheel-stud clearance pattern(s): 6 x 5.5 in; 6 x 139.7 mm; match the installed hub/axle pattern
• Housing/flange application: Big Ford New Style
• Required axle offset: 2.50 in; 63.5 mm
• Parking equipment: separate electric calipers, controller and harness included
• Hydraulic brake hoses: not included; select the correct application-specific lines/fittings
• Wheel clearance: 17-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
• Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included

Fitment & Compatibility

For this Superlite/EPB kit, the Big Ford New Style flange and 2.50-inch axle offset govern alignment of the 12.88-inch rear rotor. The axle must use a six-lug 6 x 5.5-inch pattern. Do not infer a stock-axle fit from the generic 1990 Town Car table entry; confirm the actual housing, register and flange dimensions.

The axle flange is limited to 6.61 inches and requires a 0.050-inch x 45-degree chamfer; check the 2.80-inch register against DS1650. Include clearance for the separate parking calipers in the wheel check. The EPB controller and harness are supplied, while hydraulic hoses and fittings remain separate installation items.

The table below provides the full application breakdown; match its year, model and brake-configuration details.

The electric parking brake is for stationary parking, not an emergency-stop brake. Applying it while the vehicle is moving can lock the rear wheels and cause a skid. Follow the wiring and holding-test procedures in the manufacturer’s instructions.

Manufacturer Resources

• Exact Wilwood kit specifications and wheel-clearance information
• Installation instructions and component list
• Axle-offset measurement worksheet

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.

With over 20 years of parts and fitment experience, PMB Performance can help review the intended brake installation. Provide your VIN, wheel measurements and any modified axle or spindle details when asking about compatibility.

Vehicle Applications

Application Notes

1. Line kit included (manufacturer): None