2024 Gmc At4x Hd 2024. This 2024 sierra hd at4x is painted black, and features the 6.6l v8 l5p turbodiesel duramax. After it opened it would continue to unlock every.

2024 gmc sierra 2500hd at4x aev edition front, more on that in a moment. I have a 2024 2500 diesel at4x aev edition and a week into ownership the tailgate started to open while parked.