Chevrolet also brags that only the roof is shared with the Silverado 1500, which means every other bit of bodywork you see is unique to the HD. Among the unique body features are the steps in the bedsides. We spotted these in spy shots. We now have an official name for them. They're called "Bedsteps."
While we get to see the truck in all its bold glory, Chevy is still staying fairly quiet about technical details. Two engines will be available: a gasoline V8 with a six-speed automatic and a Duramax turbodiesel V8 with a 10-speed automatic. The only output detail revealed was the diesel engine's torque, which is 910 pound-feet. That's the same amount as the 6.6-liter Duramax engine in the current Silverado HD. That's also 20 pound-feet less than the current Ram HD models and 25 pound-feet less than the Ford Super Duty trucks.
We'll have more details this February when the Silverado HD makes its public debut. Presumably, the debut will be at the Chicago Auto Show. Following the debut, the truck will go on sale in mid-2019.