2024 Gmc At4. The at4x trim is no longer offered as a standalone model and is now available as an option. Learn the ins and outs about the new 2024 gmc sierra 1500 4wd crew cab 147 at4.
The at4x trim is no longer offered as a standalone model and is now available as an option. Sb (3.0l 6cyl turbodiesel 10a).