2024 Gmc Sierra At4x Specs And Features.  — the 2024 gmc sierra 1500 is available in pro, sle, elevation, slt, at4, at4x, denali, and denali ultimate trims. Detailed specs and features for the 2024 gmc sierra 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,.

 — what do these letters all mean? 2024 sierra at4x gets duramax diesel power.