Whether it's a large fifth-wheel camper or a conventional trailer, the new next-generation 2020 Sierra Heavy Duty truck was uniquely engineered to deliver an exceptional and confident towing experience. Offered as a three-quarter-ton (Sierra 2500HD) truck and a one-ton (Sierra 3500HD) truck, the new 2020 GMC Sierra Heavy Duty perfectly mates smart technology and bold design with enhanced trailering capabilities and incredible performance. Let's take a closer look at some of the most outstanding features of the new 2020 GMC Sierra HD truck.

2020 GMC Sierra HD Power & Performance

The Sierra HD offers an available 6.6L Turbo-Diesel Duramax V8 engine that delivers a blistering 910 lb.-ft. of torque and up to 445 HP. GMC engineers went to work to improve the performance and efficiency of the engine. This engine is paired with a brand-new Allison 10-speed automatic transmission that allows it to perform in an optimal range at all times regardless of terrain conditions and load conditions.

Enjoy More Control with the New Exhaust Brake

The combination of the Duramax engine and Allison transmission employs an exhaust brake to help control the speed of the trailer and truck while going down hills. This works to reduce the need to use your service brakes on steep, long grades. In addition, the exhaust brake is connected to the cruise control system and allows it to easily maintain the set speed, even if you're traveling over hilly landscapes.

The New 6.6L V8 Engine

The Sierra's innovations extend to its gasoline offerings. The new 6.6L V8 is the only gas direct-injected V8 in the HD segment. This engine produces an impressive 464 lb.-ft. of torque and up to 401 HP, which is an astounding 22% increase in peak torque and 11% increase in HP compared to the previous gas engine. This engine is mated with the 6L90 6-speed automatic transmission.

A Look Inside the Next-Generation 2020 GMC Sierra Heavy Duty Truck

The interior of the GMC Sierra Heavy Duty is smarter, larger, and more refined! You'll enjoy Best-in-Class front row legroom and headroom on Sierra crew cab models. It also offers almost 3 inches of extra rear-seat legroom than previous model. The Sierra HD truck is smarter than ever with available 15-inch diagonal heads-up display and Rear Camera Mirror.

Class-Leading 15 Unique Camera Views

The GMC Sierra HD will help you keep a unique perspective on your trailer and the road with a Class-Leading 15 unique camera views. You'll enjoy an optimized view around your truck and trailer to provide you with a heightened level of confidence when towing.


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  • Friday 8:00 am - 7:00 pm
  • Saturday 8:00 am - 6:00 pm
  • Sunday Closed


Woody Folsom Chevrolet Buick GMC

Directions BAXLEY, GA 31513

  • Contact: (912) 307-9502

The Sierra HD's Exclusive MultiPro Tailgate

The Sierra Heavy Duty's pickup bed offers class-leading cargo volume, including a standard box that is 5.4 inches longer and 6.7 inches wider than previous models. At the same time, the Sierra HD offers lower bed sides, which allows for optimal gooseneck and fifth-wheel trailering.

However, nothing shines brighter than the GMC's world-class MultiPro Tailgate. Standard on Denali models, SLT models, and AT4 models; this innovative tailgate can be used and configured in six different ways, including as a step and load stop for longer cargo items. The Sierra HD's bed also uses segment-exclusive Bed Side steps that are conveniently located just forward the rear wheel arches - working with the enhanced CornerStep rear bumper.

Contact Woody Folsom Chevrolet in Baxley, Georgia

The new 2020 GMC Sierra HD is a remarkable vehicle loaded with innovative solutions designed to help you do more with less. While we can rant and rave about the new Sierra HD, we encourage you to check it out for yourself at Woody Folsom Chevrolet in Baxley, Georgia. Contact Woody Folsom Chevrolet Buick GMC in Baxley, Georgia today.  

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