The heavy-duty chassis of the new General Motors 2020 Chevy Silverado HD is shown at the GM Flint Assembly Plant on February 5, 2019 in Flint, Michigan.
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General Motors this week announced plans to build a new heavy-duty Chevy Silverado pickup truck. RAM has a new heavy-duty truck in the works. Ford is updating its Super Duty trucks. Why is this class of vehicle so profitable?