NC-McLean

I called to asked him again and he actually has a customer that is having a local installer put on a shell and few other items on their new 2021 Sierra, he said he will let me know when its back from installer on outcome. I will post here as well in case its good or bad news, but I expect its not going to be good news

I to have a 2020 AT4 2500 and want to add a shell, but not lose the Mirror Camera Function, I was told by our salesguy that the Installer could extend the camera to rear of shell?