Wilwood Red Rear Superlite Parking Package, Chevelle/442/Beaumont/Camaro/Apollo (1964–1974), 12-Bolt, Drilled 12.88-Inch Rotors

This red-caliper Wilwood rear package combines drilled/slotted 12.88-inch rings with four-piston Superlite calipers and internal parking-shoe assemblies. The selected axle arrangement is a 12-bolt housing with original C-clip shafts and a 2.75-inch offset. Vehicle identification is useful context, but the actual flange, bearing and offset dimensions must be established before the conversion is ordered. 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: 140-12964-DR
• Type: Forged Narrow Superlite 4R Big Brake Rear Parking Brake Kit.
• Calipers: Forged Narrow Superlite 4R; 4-piston; Red Powder Coat.
• Piston bore dimensions: 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 12.88-inch outside diameter × 1.10-inch width; SRP Drilled & Slotted; Spec-37 Iron; Black Electro Coat surface finish.
• Rotor ventilation: 48 curved vanes.
• Rear housing end: 12 Bolt; axle offset: 2.75 inches.
• Rotor hats: Parking Brake Hat - Standard; Aluminum; Black E-Coat.
• Wheel bolt circles: 5 x 4.50; 5 x 4.75; 5 x 5.00 inches.
• Included: paired calipers, pads, rotors and mounting hardware, caliper mounting brackets, rotor hats, internal parking-shoe assemblies.
• Hydraulic flex lines are separate; select the correct fittings, length and route for the vehicle.
• Parking-brake cable connections are separate and must suit the vehicle.
• Conditional wheel minimum: 17 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.

Fitment & Compatibility

Check the axle directly and exclude special-end or C-clip-eliminator modifications. The application table's Ridetech front-spindle references cannot confirm this rear kit, so those vehicle rows need verification. Match the rotor-hat registration and parking-shoe alignment using the installation instructions. Obtain suitable hoses and cable connections separately, then check their movement and release. Compare the wheel with the complete clearance drawing and verify hydraulic balance against the front brakes.

Match the individual year, model, submodel and equipment conditions in the fitment table below.

Wilwood installation documents: Installation instructions, Technical bulletin.

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

Manufacturer 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.