Fit for 1999-2007 Chevy Silverado Classic 1500 6 Lug 2 & 4 Wheel Drive. Fit for 1999-2007 GMC Sierra Classic 1500 6 Lug 2 & 4 Wheel Drive. These bolt on Lower Shock Extensions are used when Lowering your truck which allows you to reuse factory shocks for 2" to 5" Drop or drop shocks to 7" drop.
