ECCPP 2pcs Rear Window Glass Lift Supports Struts Shocks for 2007-2013 Ford Expedition,Lincoln Navigator FITMENT - Lift supports struts rods shocks props gas spring for 2007 2008 2009 2010 2011 2012 2013 Ford Expedition, 2007 2008 2009 2010 2011 2012 2013 Lincoln Navigator compatible with SG304082 6253 lift support strut QUALITY - Rust-resistant Nitride corrosion resistant piston rod extends product life, Multi-Lobe Seal make gas springs more tolerant to vibration and extreme temperature, 100% brand new and tested to meet or exceed OEM specifications FUNCTION - Use compressed gas, contained in a cylinder and compressed by a piston, to exert a force to support the weight of front hood or rear liftgate tailgate trunk hatchback doors while they are open, no need to hold the door up with your head EASY INSTALLATION - Easy to install with simple hand tools in just minutes - no special tools required for installation NOTICE - Please check the description and compatibility chart before your purchasing. We provide ONE YEAR WARRANTY for all our lift supports. Please contact us if you have any question