Met up with the founder of @dieseltrucking at Nashville Cars and Coffee to check out his incredible 2015 GMC Sierra 2500 HD ...
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2024 GMC Sierra 2500 HD AT4X AEV Edition First Test: So Big, We Couldn’t Even Get It Dirty
GMC takes the AT4X from off-road capable to overland-ready with production equipment from American Expedition Vehicles.
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