{"product_id":"wilwood-170-10621","title":"Wilwood Rear C3 Corvette Iron Parking-Brake Hat, Confirm Supplied Offset","description":"\u003cp\u003eWilwood’s iron C3 Corvette rear hat has a 6.54-inch parking-shoe bore. Confirm the supplied offset and matching drum-in-hat components. Wilwood Engineering’s work covers the design and manufacture of disc brake systems for motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977 in a business now based in Camarillo, California. Its calipers, master cylinders, brake rotors, brake lines, valves and fittings must be selected around the complete system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 170-10621\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface finish:\u003c\/strong\u003e Black E-Coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor mounting method:\u003c\/strong\u003e Fixed Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition in the specified brake assembly:\u003c\/strong\u003e Rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHat offset:\u003c\/strong\u003e 1.600 inch on the product and kit pages; 1.98 inches in DS624\/DS625 parts lists. Confirm the supplied dimension and measurement reference with Wilwood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor attachment interface:\u003c\/strong\u003e 12 x 8.75 inches; rotor attachment, separate from the hub flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub-flange mounting\/clearance pattern(s):\u003c\/strong\u003e 5 x 4.75 inches; verify the actual hub and wheel-stud clearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter register diameter:\u003c\/strong\u003e 2.81 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor mounting hole\/thread designation:\u003c\/strong\u003e 1\/4-28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParking-shoe bore:\u003c\/strong\u003e 6.54 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal clearance diameter:\u003c\/strong\u003e 6.42 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting-face thickness:\u003c\/strong\u003e 0.29 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub-side hole clearance diameter(s):\u003c\/strong\u003e 0.450 inches; these are clearance dimensions, not wheel-stud thread sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-listed attachment hardware reference:\u003c\/strong\u003e 230-8217; verify the specific rotor and attachment arrangement before ordering hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Parking-Brake Rotor Hat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Iron\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eIdentify the installed brake conversion before choosing this hat for Chevrolet Corvette C3 brake conversions. The offset, center register and attachment hardware must agree with the rotor and hub in that assembly. Wilwood publishes 1.600 inch on the product and kit pages and 1.98 inches in DS624\/DS625 parts lists. Confirm the supplied offset and its reference faces; the measurements are not treated as interchangeable. The parking-shoe diameter, anchor arrangement and complete drum-in-hat mechanism must match. A bare hat is not a complete parking-brake assembly.\u003c\/p\u003e\u003ch3\u003eManufacturer Reference\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Hats\/HatProd?itemno=170-10621\"\u003eWilwood component specifications and dimensions\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds625.pdf\"\u003eAssembly instructions DS625\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eContact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67730111299762,"sku":"170-10621","price":236.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Parking_Brake_Hat_12blt-5lug-xl.jpg?v=1792173005","url":"https:\/\/pmbperformance.com\/products\/wilwood-170-10621","provider":"PMB Performance","version":"1.0","type":"link"}