2025 Gmc At4x 2500hd Specs. View detailed specs, features and options for the 2025 gmc sierra 2500hd 4wd crew cab 159 at4x at u.s. The 2025 gmc sierra 2500 4wd crew cab at4x brings a delicious combination of comfort, style and brute force to market, for a price.

View detailed specs, features and options for the 2025 gmc sierra 2500hd 4wd crew cab 159 at4x at u.s. The 2025 gmc sierra 2500 4wd crew cab at4x brings a delicious combination of comfort, style and brute force to market, for a price.