2025 Gmc Sierra 2025 At4x 2025. 2025 gmc sierra 1500 at4 vs 2025 gmc sierra 1500 at4x. It’s been over 20 yrs since i’ve had a diesel, so all this def stuff is new to me.

I’m sure there’s a lot to learn and i look forward to y’alls input and. I went from a 2017 denali diesel hd to a 2022 1500 at4x and really missed my hd diesel.