2 PCS (SET) Liftgate Lift Supports 2002 To 2006 Chevrolet Trailblazer / 2002 To 2006 GMC Envoy / 2005 GMC Envoy XL Denali / 2003 To 2007 Isuzu Ascender (Extended Body Models - 3 Row Seats Only) FITS: REAR LIFTGATE (Extended Body Models 3 Row Seats Only) 2002 To 2006 Chevrolet Trailblazer / 2002 To 2006 GMC Envoy XL / 2005 GMC Envoy XL Denali / 2003 To 2007 Isuzu Ascender (Extended Body Models Only) Extended Length: 23.21 in--Compressed Length:16.81 in Need to replace a lift support? Not sure which one you need? No problem. Contact us by email Amazon@partsavenue.us or call us at (631) 750-1941 Whether you're a professional mechanic or a do-it-yourself guru, we can provide you with detailed installation instructions. LifeTime Limited Warranty On All Our Lift Supports*. See Warranty Details