Wilwood Rear Red-Caliper GT Brake Kit, Chevy Factory C-Clip 12-Bolt at 2.81-Inch Offset, 12.88-Inch Rotors

This red-caliper GT package combines 12.88-inch rotors with an internal drum parking brake for the specified Chevy C-clip axle. It is selected by the housing flange and 2.81-inch offset, not by a broad vehicle-name match. Wilwood Engineering’s disc brake systems and components serve motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977; it is based in Camarillo, California. Wilwood designs and manufactures brake rotors and calipers as well as master cylinders, valves, brake lines and fittings. Selecting compatible components is essential to the complete system.

Technical Details

• Manufacturer part number: 140-9213-R
• Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
• Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
• Rotor/hat wheel-stud clearance pattern(s): 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; the existing hub/axle pattern is retained
• Hat/rotor stud-hole clearance: 0.520 in; 13.21 mm; this is not a wheel-stud thread designation
• Required axle offset: 2.81 inches; measure from the axle flange to the housing flange as shown in the instructions
• Parking brake: internal drum/shoe assemblies included; cable, clevis and control hardware are separate
• Hydraulic hoses: not included; match the separate lines and fittings to the application
• Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
• Not included: master cylinder and brake booster
• Wheel clearance: 17-inch wheels may fit; check the complete manufacturer caliper/rotor template
• Quantity: sold as one axle kit
• Service calipers: 4-piston Forged Narrow Superlite 4R; Red Powder Coat; radial mounting
• Brake rotors: 12.88 x 1.10 inches; Spec-37 Iron; GT Slotted; vented
• Included pad compound: BP-10; pistons: stainless steel

Fitment & Compatibility

Select this kit by the Chevrolet 12-bolt factory C-clip axle arrangement and 2.81-inch measured offset. It is not the special 3.15-inch-bearing or C-clip-eliminator package. The GM vehicle entries below are conditional on the installed rear housing; a front-spindle description does not establish rear-axle compatibility.

Measure the flange pattern, register and axle offset using DS523 and the worksheet. The maximum axle-flange diameter is 6.61 inches with the specified chamfer. Hydraulic lines and parking-cable/clevis hardware are separate; universal cable kit 330-9371 is an option requiring installation-specific routing.

Review the complete fitment table below before purchase, retaining the restrictions attached to the chosen vehicle.

Adjust and test the mechanical parking brake as directed. Cable routing, tension and shoe adjustment affect its holding ability; do not rely on an untested parking brake alone to secure the vehicle on a slope.

Manufacturer Resources

• 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. For OE C-Clip axles only. Does not support Special End or C-Clip Eliminator modifications
2. Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.
3. Universal Parking Brake cable kit, may require modifications to cable or vehicle to install.
4. Line kit included (manufacturer): None