Wilwood Rear Camaro Iron Parking Hat for a 7.91-Inch Shoe Assembly

Wilwood's Camaro rear parking hat has a 7.91-inch shoe bore and 0.730-inch offset. Verify the parking shoes, hub register and rotor attachment. Founded by Bill Wood in 1977, Wilwood Engineering designs and manufactures disc brake systems from Camarillo, California. Its calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications. Individual components must be selected for the complete brake system.

Technical Details

• Manufacturer part number: 170-11306
• Internal clearance diameter: 6.26 inches
• Mounting-face thickness: 0.25 inches
• Hub-side hole clearance diameter(s): 0.520, 0.640 inches; these are clearance dimensions, not wheel-stud thread sizes
• Manufacturer-listed attachment hardware reference: 230-8217; verify the specific rotor and attachment arrangement before ordering hardware
• Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
• Component: Parking-Brake Rotor Hat
• Material: Iron
• Surface finish: Black E-Coat
• Rotor mounting method: Fixed Mount
• Position in the specified brake assembly: Rear
• Hat offset: 0.730 inch
• Rotor attachment interface: 12 x 8.75 inches; rotor attachment, separate from the hub flange
• Hub-flange mounting/clearance pattern(s): 5 X 4.75, 5 X 4.72, 5 X 4.50 inches; verify the actual hub and wheel-stud clearance
• Center register diameter: 3.06 inches
• Rotor mounting hole/thread designation: 1/4-28
• Parking-shoe bore: 7.91 inches

Fitment & Compatibility

For Chevrolet Camaro brake conversions, compare the replacement with the actual hat and complete brake-kit instructions. A matching flange pattern alone does not establish rotor alignment or caliper clearance. 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

For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.