GMC Logo2020 GMC Sierra 3500HD V (GMTT1XX) Double Cab Long Bed in Summit White: Front angle view of heavy-duty pickup with large grille and extended cab.

Front angle view of heavy-duty pickup with large grille and extended cab.

Wide front angle showing heavy-duty pickup truck front with large black grille, LED headlights, extended double cab, large off-road tires, red towing hooks, and white long bed chassis.

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

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

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Small red car