I have a 2015 Sierra 2500hd 6.0L. I have a rattle in the rear past the 2 catalytic converters and before the muffler. I’m curious if it is a 3rd catalytic converter?? It’s the red circle in the pic.
Hey guys I know this has been talked about before but I could not find it. I have a 2015 Sierra 2500hd with a leveling kit I’m upgrading my tires to Nitto the size I want to get is 285/75R18 will I have any rub while turning or anything? I didn’t want to cut anything. Thank you all in advance. Matt