{"product_id":"wilwood-270-7309","title":"Wilwood Front GM G-Body Hub for Vented-Rotor Adapters (1980–1987)","description":"\u003cp\u003eThis Wilwood front wheel hub is configured for a vented-rotor brake layout on the specified 1980-1987 GM G-Body spindle. A separate adapter joins the rotor to the hub, while dual bolt circles provide the listed five-lug wheel mounting choices. Wilwood Engineering began in 1977 under founder Bill Wood and is based in Camarillo, California. The company designs and manufactures disc brakes, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized uses. Individual parts must be matched to the rest of the brake system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 270-7309\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\u003ePosition:\u003c\/strong\u003e Front\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel bolt pattern:\u003c\/strong\u003e 5 x 4.75 in; 5 x 4.50 in\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 adapter patterns:\u003c\/strong\u003e 6 x 6.25 in; 8 x 7.00 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.200 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner bearing specification:\u003c\/strong\u003e 370-0879 \/ A6 set (fitment reference)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter bearing specification:\u003c\/strong\u003e 370-0933 \/ A34 set (fitment reference)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eCheck the actual G-Body spindle and bearing dimensions, including any aftermarket spindle changes. Rotor adapter options are 300-3307 for the six-bolt pattern and 300-3099 for the eight-bolt pattern. Match the offset to the caliper bracket rather than selecting only by vehicle year.\u003c\/p\u003e\u003ch3\u003eManufacturer Documents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds719.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood DS719 technical document\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Hubs\/HubProd.aspx?itemno=270-7309\" target=\"_blank\" rel=\"noopener\"\u003eWilwood product information\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThe photograph represents the product family. Match the ordered configuration using the part number and specifications above.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eHave a question about the hardware already on your vehicle? PMB Performance can help compare the part and mounting requirements, backed by over 20 years of brake and fitment experience.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67700918124722,"sku":"270-7309","price":160.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Pro_Street-xl_71f01179-1be5-4d14-855b-35f952f04706.jpg?v=1792076130","url":"https:\/\/pmbperformance.com\/products\/wilwood-270-7309","provider":"PMB Performance","version":"1.0","type":"link"}