2007 GMC Sierra 3500HD III (GMT900) Crew Cab Long Box: Heavy duty pickup with crew cab and long box.

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Bull-Doser, Public domain, via Wikimedia Commons

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Black heavy duty pickup truck featuring a crew cab with four doors, a long cargo bed, large front grille, and alloy wheels designed for durability and utility.

View Dimensions of the 2007 GMC Sierra 3500HD III (GMT900) Crew Cab Long Box

View 30 images of the 2007 GMC Sierra 3500HD III (GMT900) Crew Cab Long Box