{"product_id":"wilwood-160-16663-bk","title":"Wilwood Rear Left-Hand 16-Inch SRP Rotor and Parking Hat for GM 1500","description":"\u003cp\u003eOn a compatible GM 1500 with the 16-inch rear brake conversion, this left-hand rotor restores the specified SRP friction surface. The 8.27-inch internal drum and 2.220-inch offset are integral to its disc\/drum design, rather than separate bolt-on hat dimensions. Founded in 1977, Bill Wood’s Wilwood is based in Camarillo, California and designs and manufactures disc brake systems for motorsport, street performance and specialized applications. Its range runs from calipers and rotors to master cylinders, valves, fittings and lines. Choosing a rotor involves matching those surrounding components as well as the vehicle’s intended use.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 160-16663-BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One rotor; not an axle pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside diameter:\u003c\/strong\u003e 16.00 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal thickness:\u003c\/strong\u003e 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor material:\u003c\/strong\u003e Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e 48 vanes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction surface:\u003c\/strong\u003e SRP Drilled \u0026amp; Slotted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Electro Coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate weight:\u003c\/strong\u003e 39.48 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory burnished:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamically balanced:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation orientation:\u003c\/strong\u003e Left-hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistration \/ lug inside diameter:\u003c\/strong\u003e 3.09 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFar-side inside diameter:\u003c\/strong\u003e 11.05 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor offset:\u003c\/strong\u003e 2.220 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal parking-brake drum diameter:\u003c\/strong\u003e 8.27 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal clearance diameter:\u003c\/strong\u003e 7.56 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting-face thickness:\u003c\/strong\u003e 0.24 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHat wheel-stud clearance pattern:\u003c\/strong\u003e 6 x 5.50 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel-stud clearance hole diameter:\u003c\/strong\u003e 0.63 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpposite-hand companion rotor:\u003c\/strong\u003e 160-16662-BK (sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use and restrictions:\u003c\/strong\u003e Rear rotor for matching six-lug GM 1500 brake kits with an internal parking drum.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe integral hat is part of the rotor; caliper, pads, parking-brake mechanism and installation hardware are separate.\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eVerify the exact conversion and its six-on-5.50-inch stud layout. The rotor’s 3.09-inch registration bore must seat correctly on the intended hub or axle flange.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Rotors\/RotorProd?itemno=160-16663-BK\"\u003eWilwood product specifications\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003ePMB Performance offers more than 20 years of brake experience and practical help with replacement parts. Contact our team if you need assistance confirming the rotor for your installation.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67730083610802,"sku":"160-16663-BK","price":395.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/160-16662-BK-xl_8b210617-1d0f-48f2-bb90-977c8d834607.jpg?v=1792172799","url":"https:\/\/pmbperformance.com\/products\/wilwood-160-16663-bk","provider":"PMB Performance","version":"1.0","type":"link"}