The Stabilus EZDown SG330901EZ is a tailgate assist kit specifically designed for 2008–2019 Chevrolet Silverado and GMC Sierra 1500, 2500 HD, and 3500 HD trucks. It is a hydraulic damper that safely controls the drop rate of your tailgate to prevent slamming and potential damage. SiraWeb.com SiraWeb.com +3 Vehicle Compatibility This kit fits the following models (excluding "Classic" models for some 2019 versions): eBay eBay +2 Chevrolet Silverado 1500/2500 HD/3500 HD: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. GMC Sierra 1500/2500 HD/3500 HD: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. Note: For older 1999–2007 GM trucks, the correct part is typically the SG330900EZ.