Nfab AdjustSTEP Truck Step, Wheel to Wheel ASC07100CC Textured Black CHEVROLET GMC SIERRA 2500 HD SILVERADO 2500 HD LT LTZ SLE SLT WT 2007 2008 2009 2010 6L GEN IV Flex L96 Vortec (364) 6L GEN IV LY6 Vortec (364) FLEX GAS Nfab N-FAB AdustSTEP Truck Steps (Textured Black) - ASC07100CC ASC07100CC Nerf/Step Bar Wheel to Wheel