Westin E-Series 3 inch Round Step Bar, Cab Length 23-3715 3 in. Round Step Bar; Cab Length; Dual Step Pad; Black; Steel; Rocker Mounted; Mount Kit Included CHEVROLET GMC SIERRA 1500 SIERRA 2500 HD SIERRA 3500 HD SILVERADO 1500 SILVERADO 2500 HD SILVERADO 3500 HD BASE CUSTOM LS LT LTZ SLE SLT WT 2014 2015 2016 4.3L LV3 (262) Vortec 5.3L Ecotec3 L83 (325) 6.2L Ecotec3 L86 (376) 6L GEN IV CNG LC8 Vortec (364) 6L GEN IV Flex L96 Vortec (364) 6L GEN IV Flex LC8 Vortec (364) 6L GEN IV L96 Vortec (364) 6L GEN IV LC8 Vortec (364) CNG FLEX GAS Westin Westin E-Series Cab Length 3 Inch Round Step Bars (Black) - 23-3715 23-3715 Nerf Steps