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2020 GMC Sierra HD: The big boy

The heavy duty truck gets a major revamp for 2020 with a new look and loads of new tech.

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Emme Hall

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2020 GMC Sierra HD
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The 2020 GMC Sierra HD has a bunch of features that make towing easier and less stressful.

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When equipped with the optional 6.6-liter turbodiesel V8, the Sierra HD can tow up to 35,500 pounds.

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The Transparent Trailer rear camera makes your trailer virtually invisible. How cool is that?

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The diesel engine puts out 445 horsepower and 910 pound-feet of torque.

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There is a 6.6-liter V8 gas option as well, pushing out 401 horsepower and 464 pound-feet of torque.

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The gas engine can tow a maximum of 17,400 pounds.

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A new, rugged AT4 trim includes an off-road mode and all-terrain tires wrapped around 18-inch wheels. 

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Up to eight cameras provide 15 different views around the truck and trailer.

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The MultiPro tailgate can be configured six different ways.

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The 2020 GMC Sierra HD starts at $40,000 for a base trim plus $1,595 destination. Keep scrolling for more photos.

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2020 GMC Sierra 2500 HD Denali

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