2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Long Bed: Open truck bed with textured liner and tailgate down

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Rear view of an open truck bed featuring a textured bed liner, extended tailgate down, and visible rear lights, showcasing spacious cargo capacity and rugged construction.

View Dimensions of the 2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Long Bed

View 25 images of the 2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Long Bed