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GMC Sierra HD

2020 GMC Sierra HD

The bigger frame, powered by a 6.6L Duramax turbo-diesel with 910 lb.-ft. of torque that is mated to a 10-speed Allison transmission delivers a greater towing capacity than its predecessor models, well in excess of 30,000 pounds.

GMC Debuts Sierra All Mountain Concept

The 2018 GMC Sierra 2500HD All Mountain concept is a one-of-a-kind snow-climbing machine and adds enhanced capability and features through concept Mattracks technology and GMC Accessories.

Three-Quarter-Ton vs. 1-Ton Pickups

Commercial and government fleet purchasers prioritize versatility and seek to enhance productivity when considering which heavy-duty pickup to add to their fleet, truck manufacturers told AutomotiveFleet.com.

GMC Sierra HD Pickup Offers Plow Prep Package

DETROIT - With the white stuff finally falling on cities used to snow-covered roads earlier in the winter, plow-equipped trucks that make up a $20 billion annual industry are coming out to play.