Wilwood Plain 11-Inch Rear Disc Brake Conversion for Small Ford 2.50-Inch Offset with Red Calipers and Parking Shoes

Plain rear rotors and red low-profile calipers suit the Small Ford flange and 2.50-inch axle offset. Confirm actual axle geometry before ordering. Wilwood Engineering is a Camarillo, California manufacturer founded by Bill Wood in 1977. Disc brake design and manufacturing extend across calipers, brake rotors, master cylinders, valves, fittings and brake lines. Parts for street-performance, specialized applications and motorsport must be selected to meet the requirements of the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-15604-R
• Kit classification: Rear Brake Kits - Street Performance
• Axle position: Rear Kits
• Brake Type: Disc; Parking
• Selling unit: Sold as a kit.
• Rotor Outside Diameter: 11.00 in; 279.4 mm
• Rotor Thickness: 0.81 in; 20.57 mm
• Rotor Material: Iron
• Surface Type: Plain Face
• Rotor construction: Vented
• Bolt Circle Diameter: 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 mounting-hole clearance diameter (not stud thread): 0.52 in; 13.21 mm
• Rotor surface finish: Plain
• Rotor vane / construction reference: 32 V
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: No
• Minimum wheel diameter guidance; verify clearance drawing: 14 in; 355.6 mm
• Required spindle / rear housing interface: Small Ford
• Required axle-flange offset: 2.50 in; 63.5 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No separate wheel hubs; one-piece rotor-and-parking-hat units included
• Pistons per service caliper: 4
• Service-caliper piston material: Stainless
• Service-caliper mounting: Lug
• Caliper body construction: Forged aluminum
• Caliper Color: Red
• Caliper Finish: Red Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: low-profile Dynapro
• Pad compound: BP-10

Fitment & Compatibility

The red-caliper, plain-disc version fits the specified Small Ford rear housing flange with exactly 2.50 inches of axle-flange offset. Identify the flange and measure from the wheel-side axle face to the housing flange; the new-style Big Ford 2.50-inch interface and Small Ford 2.66-inch version are different kits. Included internal shoes act inside the one-piece 11.00 × 0.81-inch iron rotor hats, while the cable system, clevises, adapters and hoses require separate selection. Stock 1990 Lincoln Town Car fitment is unconfirmed; the listed vehicle alone does not establish this axle geometry. Verify the installed axle rather than promising compatibility from that row. Check flange size/chamfer, stud clearance and any required machining. Rotor centering uses the specified 3.06-inch opening or the supplied 2.80-inch adapter as appropriate. Confirm actual wheel clearance with the template, including any nominal 14-inch wheel exception.

Listed models: Town Car. See the supplied table below for each year, submodel and equipment condition.

Wilwood product specifications · Installation instructions · Technical bulletin

Our team at PMB Performance has over 20 years of parts and fitment experience. The existing component number and brake-system details help us check the match.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.