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Product details
A 7.48-inch shoe bore fits the specified C5/C6 Wilwood rear parking assembly. Check this hat's 0.670-inch offset and twelve-bolt rotor connection. Founded in 1977 under Bill Wood, Wilwood Engineering operates from Camarillo, California. The company designs and manufactures disc braking systems and components, including calipers, master cylinders, brake rotors, fittings, valves and brake lines. Its motorsport, specialized and street-performance range requires individual parts matched to the complete braking arrangement.
Technical Details
- Manufacturer part number: 170-17811
- Internal clearance diameter: 7.29 inches
- Mounting-face thickness: 0.25 inches
- Hub-side hole clearance diameter(s): 0.520 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-8008; verify the specific rotor and attachment arrangement before ordering hardware
- Component: Parking-Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Rear
- Hat offset: 0.670 inch
- Rotor attachment interface: 12 x 8.75 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 x 4.50, 5 x 4.75 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 2.78 inches
- Rotor mounting hole/thread designation: 1/4-20
- Parking-shoe bore: 7.48 inches
Fitment & Compatibility
Match this component to the documented Chevrolet Corvette C5/C6 brake conversions. Confirm the mounting stack, center location and rotor hardware; vehicle model alone does not establish compatibility with a modified brake system. The parking-shoe diameter, anchor arrangement and complete drum-in-hat mechanism must match. A bare hat is not a complete parking-brake assembly.
Manufacturer Reference
Wilwood component specifications and dimensions
PMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.
