2020 GMC Sierra 3500HD V (GMTT1XX) Regular Cab Long Bed: Rear black leather seats with brown accents, headrests, and seat belts

Rear seating area showing black leather bench seats with brown accent inserts, equipped with three headrests and three seat belts inside a vehicle cabin.

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

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

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