Westin Platinum Series 4 inch Oval Step Bar, Wheel to Wheel 24-54155 Finish: Black Steel;No Drilling Installation;Mounting Brackets Included;Sold As: Pair CHEVROLET GMC SIERRA 1500 SIERRA 1500 CLASSIC SILVERADO 1500 SILVERADO 1500 CLASSIC CLASSIC LS CLASSIC LT CLASSIC SL CLASSIC SLE CLASSIC SLT DENALI HYBRID LS LT LTZ SL SLE SLT WT XFE Z71 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 4.3L (262) Vortec 4.3L LU3 (262) Vortec 4.3L LU3 (4293cc) Vortec 4.8L GEN III LR4 Vortec (294) 4.8L GEN IV Flex L20 Vortec (294) 4.8L GEN IV LY2 Vortec (294) 5.3L GEN III Flex L59 Vortec (325) 5.3L GEN III L33 Vortec (325) 5.3L GEN III LM7 Vortec (325) 5.3L GEN IV Flex LC9 Vortec (325) 5.3L GEN IV Flex LMG Vortec (325) 5.3L GEN IV LH6 Vortec (325) 5.3L GEN IV LY5 Vortec (325) 6.2L Flex L9H (376) 6L GEN III Electric/Flex LZ1 Vortec(364) 6L GEN III Electric/Gas LFA Vortec (364) 6L GEN III LQ9 HO Vortec (364) 6L GEN IV L76 Vortec (364) ELECTRIC/FLEX ELECTRIC/GAS FLEX GAS Westin Westin Platinum Series Oval Wheel-To-Wheel Step Bars (Black) - 24-54155 24-54155 Nerf/Step Bar Wheel to Wheel