{"product_id":"wilwood-270-11813","title":"Wilwood Front Chevrolet Rotor-Adapter Hub (1949–1954), 5 x 4.75\/5.00-Inch Patterns","description":"\u003cp\u003eThe dual wheel patterns on this Chevrolet front hub are 5 x 4.75 and 5 x 5.00 inches. Its intermediate rotor plate and spindle bearings must match the documented 1949–1954 brake conversion. Wilwood Engineering designs and builds disc brake systems in Camarillo, California. Bill Wood established the company in 1977; it supplies brake rotors, calipers, master cylinders, valves, fittings and lines for specialized applications, street performance and motorsport. The complete brake system determines which individual components are appropriate.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 270-11813\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer bearing \/ race references:\u003c\/strong\u003e Inner Bearing: 370-0884; Outer Bearing: 370-0877; Inner Hub Bearing - Race: 370-0883; Outer Hub Bearing - Race: 370-0876. References identify compatible service parts and do not mean all bearings are included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelated assembly part reference(s):\u003c\/strong\u003e 300-3307; 300-3099; check the kit contents and obtain any separately required parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e One hub; the compatible rotor, rotor adapter or hat and its attachment hardware are selected for the complete conversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub closure and races:\u003c\/strong\u003e Manufacturer describes included bearing races and screw-on aluminum cap; confirm the supplied assembly and obtain the compatible bearings separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Hub - Vented Rotor Offset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition in the specified assembly:\u003c\/strong\u003e Front\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Bare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel mounting pattern(s):\u003c\/strong\u003e 5 x 4.75, 5 x 5.00 inches; separate from rotor or drive-flange attachment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel-stud thread:\u003c\/strong\u003e 1\/2-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor mounting arrangement:\u003c\/strong\u003e Adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor interface:\u003c\/strong\u003e 5 x 3.88; this is not the wheel bolt circle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible rotor-adapter output interface(s):\u003c\/strong\u003e 6 x 6.25, 8 x 7.00; match the actual adapter and rotor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct-page drawing references (inches):\u003c\/strong\u003e A = 1.130; D = 2.500; H = 2.052; M = 3.700; N = 1.880; P = 3.010; Q = 0.250. Use the manufacturer drawing for the reference faces.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eCompare the spindle journals, bearing references and hub mounting faces with the complete brake assembly. A shared wheel bolt pattern alone does not establish hub interchangeability.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Hubs\/HubProd?itemno=270-11813\"\u003eWilwood component specifications\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds719.pdf\"\u003eManufacturer reference DS719\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eWith more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67731116064946,"sku":"270-11813","price":164.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Pro_Street-xl_c9591b50-6ca6-4255-8cb8-b6a5651629a1.jpg?v=1792184332","url":"https:\/\/pmbperformance.com\/products\/wilwood-270-11813","provider":"PMB Performance","version":"1.0","type":"link"}