Only One Truck Crushes It! 2020 Ford F350 vs GMC 3500 HD vs The World’s Toughest Towing Test!

2020 Ford F-350 and its new 6.7L Power Stroke turbo diesel V8 is going up against the 2020 GMC Sierra 3500 HD and the 6.6L Duramax V8 diesel. Both Tow a maximum load 30,000 lbs trailer up and down the Ike Gauntlet – world’s toughest towing test.

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