Speaker 1: Today on our 2016 GMC Sierra 2500 we're gonna take a look at and also show you how to install the Westin PRO TRAXX Oval Nerf Bars, these four inch polished stainless steel Nerf bar's part number is 21-23860.Now of course the need for tube steps like this either gonna be to upgrade the look of your truck, make it more stylish as these have done, or to help you get in and out.… see more >