Amp Research PowerStep(TM) XL Running Boards take the style and convenience of traditional running boards to the next level. As the name implies, these automated boards extend when your cab door is opened and tuck away when the door is shut. The extending and retracting happens quickly - in less than a second - so you're not waiting around. Unlike the base Powerstep model, these are designed to hang even lower - making them great for lifted trucks. Non Plug N Play System-Includes OEM style illumination-Crew Cab Only 2008-2009 Chevrolet Silverado 1500 LS GAS Crew Cab Pickup; 2007-2009 Chevrolet Silverado 1500 LT GAS Crew Cab Pickup; 2007-2009 Chevrolet Silverado 1500 LTZ GAS Crew Cab Pickup; 2007-2013 Chevrolet Silverado 1500 WT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 2500 HD LT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 2500 HD LTZ GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 2500 HD WT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 3500 HD LT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 3500 HD LTZ GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 3500 HD WT GAS Crew Cab Pickup; 2007-2008 GMC Sierra 1500 Denali GAS Crew Cab Pickup; 2008-2009 GMC Sierra 1500 SL GAS Crew Cab Pickup; 2007-2009 GMC Sierra 1500 SLE GAS Crew Cab Pickup; 2007-2009 GMC Sierra 1500 SLT GAS Crew Cab Pickup; 2007-2013 GMC Sierra 1500 WT GAS Crew Cab Pickup; 2007-2014 GMC Sierra 2500 HD SLE GAS Crew Cab Pickup; 2007-2014 GMC Sierra 2500 HD SLT GAS Crew Cab Pickup; 2007-2014 GMC Sierra 2500 HD WT GAS Crew Cab Pickup; 2014 GMC Sierra 3500 HD Denali GAS Crew Cab Pickup; 2007-2014 GMC Sierra 3500 HD SLE GAS Crew Cab Pickup; 2007-2014 GMC Sierra 3500 HD SLT GAS Crew Cab Pickup; 2007-2014 GMC Sierra 3500 HD WT GAS Crew Cab Pickup
