2x Shock Extender BracketsInstallation Instructions?FITS: 2001-2010 GMC 1500HD We GUARANTEE you can't go wrong with our Shock Mount Extension Brackets, constructed from Heavy Duty 1/4" Thick Steel and Powder Coated black, protecting them from discoloration and rust! These brackets are great for use with trucks lifted 2" or more - no need to replace your front shocks when installing a lift kit.