Learn more about next generation GMC Sierra 2500HD and 3500HD trailering capability, vehicle specs, cargo volume, powerful performance and more. 2020 Sierra 2500HD & 3500HD SLT & … 2020 GMC Sierra 3500HD Review: The Good, the Bad, and the Ugly What stood out to us on this 2020 Truck of the Year finalist 2020 GMC Sierra 3500HD buyers have numerous choices to make when selecting a truck. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner's Manual. It provides a max trailering functionality of 10,000 lbs. 2020 GMC Sierra 3500HD Reguler Cab, Specs, Configurations - Weighty-task moving plus dragging need a weighty-responsibility pickup, along with the 2020 GMC Sierra 3500HD is definitely a lot effective at undertaking equally, The GMC Sierra 3500HD is a popular full-size van that is versatile and adaptable for your needs. The weight of passengers, cargo and options or accessories may reduce the amount you can tow. 14,500/6,577 † 2020 Sierra 3500HD Denali 4WD Crew Cab, Standard Bed Denali with 6.6L V8 Direct Injection with Variable Valve Timing Gas engine. Choose from multiple trim levels of the next generation 2020 GMC Sierra 2500HD and 3500HD, like the SLE & SLT, Denali or AT4 trim. and a specific tow/haul mode that reduces excess shift, making it ready to handle even the most difficult jobs with ease. Explore the lineup of 2020 GMC Sierra HD's to find the heavy-duty pickup truck you need to get the job done right.