The new 2011 Chevrolet Silverado 2500 and 3500 Heavy Duty Trucks will debut at the Chicago Auto Show this February.

The pickups have not been updated since 2006 and so they might tweak the exterior and interior features a bit. But two of the major improvements include the all-new chassis underneath and the new 6.6-liter Duramax V-8 diesel engine. Maybe for better aerodynamics and (there can be no better timing) fuel efficiency.

We still have to see it for ourselves though. But for now, we wait.

Sources: Pickup Trucks