{"product_id":"steelcraft-stx400-step-boards-2007-2019-chevrolet-silverado-gmc-sierra-ld-hd-1500-2500-3500-crew-cab-alum-stainless-model-400-02237","title":"Steelcraft STX400 Step Boards | 2007-2019 Chevrolet Silverado \/ GMC Sierra LD\/HD 1500\/2500\/3500 Crew Cab  | Alum\/Stainless| Model 400-02237","description":"\u003cp\u003e\u003cstrong\u003eEngineered to fit. Made to protect. Built to last.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eSteelcraft STX400 Step Boards for 2007-2018 Chevrolet Silverado 1500, 2500, 2500 and 3500 HD - All Silverado 2500 models, Crew cab and Regular cab and 2007-2018 GMC Sierra 1500, 2500 and 3500 HD - All Sierra models, Crew cab and Regular cab\u003c\/h2\u003e\u003cp\u003eUpgrade your truck with lightweight, high-strength Steelcraft STX400 Step Boards?recision-built from extruded aluminum for aircraft-grade durability, superior corrosion resistance, and an aggressive 5 stepping surface designed for daily use on work trucks and everyday drivers.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eExtruded aluminum step board body for ultra-light weight and exceptional strength\u003c\/li\u003e\n\u003cli\u003eCustom mounting brackets included for a precise, vehicle-specific fit\u003c\/li\u003e\n\u003cli\u003eE-coated and powder coated for long-term rust and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eAggressive 5 custom polyethylene step pads for secure footing in all conditions\u003c\/li\u003e\n\u003cli\u003eAvailable in Black\/Black or Black\/Stainless finishes\u003c\/li\u003e\n\u003cli\u003eSimple, bolt-on installation on most applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle:\u003c\/strong\u003e 2007-2018 Chevrolet Silverado 1500, 2500, 2500 and 3500 HD - All Silverado 2500 models, Crew cab and Regular cab and 2007-2018 GMC Sierra 1500, 2500 and 3500 HD - All Sierra models, Crew cab and Regular cab\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCab Size:\u003c\/strong\u003e Crew Cab\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 400-02237\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Style:\u003c\/strong\u003e Rocker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Options:\u003c\/strong\u003e Black\/Black or Black\/Stainless\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat? in the Box\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSTX400 Step Boards (pair)\u003c\/li\u003e\n\u003cli\u003eVehicle-specific mounting brackets\u003c\/li\u003e\n\u003cli\u003eHardware kit\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs \u0026amp; Warranty\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Extruded aluminum with polymer step pads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep Pad Width:\u003c\/strong\u003e 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black powder coat with optional stainless trim\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty (Black\/Stainless):\u003c\/strong\u003e Limited Lifetime Warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty (Black\/Black):\u003c\/strong\u003e 3-Year Finish Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eMost applications install using factory mounting points\u003c\/li\u003e\n\u003cli\u003eNo drilling required on most models\u003c\/li\u003e\n\u003cli\u003eVerify cab size and year range before ordering\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended for best results\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eReady to add lightweight strength, aggressive footing, and OE-style function to your truck?\u003c\/strong\u003e Choose Steelcraft STX400 Step Boards for the perfect blend of durability, style, and everyday practicality.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eThe Steelcraft Advantage\u003c\/h3\u003e\u003cp\u003eWith over 27 years of expertise, Steelcraft Automotive continues to lead the industry in premium aftermarket bumpers and accessories. Our American-based facilities in Corona, CA, Schertz, TX, and Douglas, GA allow us to innovate quickly and deliver products up to 180 days ahead of competitors. Choosing Steelcraft means choosing a brand backed by superior engineering, advanced coatings, and unmatched durability.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e 400-02237\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitle:\u003c\/strong\u003e 2007-2019 Chevrolet Silverado \/ GMC Sierra LD\/HD 1500\/2500\/3500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 Chevrolet Silverado 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 1500 Classic - Regular cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 1500 HD Classic - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 Chevrolet Silverado 2500 - All Silverado 2500 models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 Chevrolet Silverado 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 2500 HD Classic - Regular cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 3500 Classic - Regular cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 Chevrolet Silverado 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 GMC Sierra - All Sierra models \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 GMC Sierra 1500 - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 1500 Classic - Regular cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 1500 HD Classic - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 GMC Sierra 2500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 2500 HD Classic - Regular cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 3500 Classic - Regular cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2007 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2008 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2009 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2010 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2011 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2012 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2013 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2014 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2015 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2016 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2017 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Make Model - Submodel:\u003c\/strong\u003e 2018 GMC Sierra 3500 HD - Crew cab \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e 07-19 Chevy Silverado \/ GMC Sierra LD\/HD 1500\/2500\/3500 Crew Cab Alum\/Stainless STX400 Step Boards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCab:\u003c\/strong\u003e Crew Cab\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e Rocker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Alum\/Stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecial Instructions:\u003c\/strong\u003e 85 long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Lifetime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLTL:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaster UPC:\u003c\/strong\u003e 840813151038\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExt. Description:\u003c\/strong\u003e STX 400 Step Boards feature an extruded aluminum body, textured powder coating, stainless steel cover plates \u0026amp; 5·aggressive patterned step pads designed for years of service. 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