Wilwood Rear GT Slotted Brake Kit with Red Parking Calipers, Ford Mustang (1994–2004), Solid Axle

Red combination parking calipers are paired with GT slotted 12.88-inch rotors in this Wilwood Mustang rear package. A cable lever supplies the parking function, while the hydraulic piston applies the service brake. The mounting hardware is for the specified solid 8.8-inch axle, not the independent Cobra rear suspension. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-10158-R
• Type: Combination Parking Brake Caliper Rear Brake Kit
• Calipers: Combination Parking Brake; 1 piston; Red Powder Coat.
• Bores: 1.62 inches. Pads: BP-10.
• Rotors: 12.88-inch diameter × 1.00-inch width; GT Slotted, Spec-37 Iron, Black Electro Coat. 48 curved vanes.
• Rear housing end: 8.8 Ford 94-04.
• Axle flange offset: 3.25 inches.
• Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
• Included: paired calipers, pads, rotors, brackets and assembly hardware, rotor hats.
• Not included: hydraulic lines, master cylinder, booster or spindles. Reuse suitable matching components.
• Parking cables/connections separate.
• Conditional wheel minimum: 17 inches. Check the clearance drawing for barrel and spoke offset.

Fitment & Compatibility

Check the 3.25-inch flange offset and inspect the actual rear housing on modified cars. The manufacturer requires custom rear flex lines for 1995–1998 vehicles and does not offer that custom solution. Select hoses and parking connections before assembly, and verify the wheel's spoke profile against the drawing. The listed Mustang years do not override the solid-axle restriction.

Match the individual model, year, submodel and brake configuration in the fitment table below.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for fitment help.

California Proposition 65 warning — 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.