2024 Gmc Sierra 2500hd At4x Aev Diesel. Testing the new gmc 2500hd at4x aev edition with its 6.6l duramax diesel producing 975 lb ft of torque! The 2024 gmc sierra 2500 hd at4x aev edition adds functional style from american expedition vehicles trove of aftermarket accessories in a production package.

Here’s a list of official specs for the 2024 gmc sierra hd at4x & at4x aev edition. The v8 turbodiesel will make 470.