These wheel lug studs are made of carbon steel and tested to demanding automotive industry standards to ensure strength, longevity and safety. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Express 3500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021] - [Chevrolet Express 4500: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020] - [Chevrolet Silverado 2500 HD: 2001, 2002, 2003, 2004, 2005, 2006] - [Chevrolet Silverado 3500 Classic: 2007] - [Chevrolet Silverado 3500 HD: 2007, 2008, 2009, 2010] - [Chevrolet Silverado 3500: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010] - [GMC Savana 3500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021] - [GMC Savana 4500: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Sierra 2500 HD: 2001, 2002, 2003, 2004, 2005, 2006] - [GMC Sierra 3500 Classic: 2007] - [GMC Sierra 3500 HD: 2007, 2008, 2009, 2010] - [GMC Sierra 3500: 2001, 2002, 2003, 2004, 2005, 2006]