I was impressed. I used to drive an F550 dually with a 16ft box when I delivered kraft beers but it has a gas V10 in it. My roommates Tremor has the Gas 7.3L Godzilla engine. Hell, when the Semi smashed my car it barely jolted us. No damage at all to the truck.That's like a quarter of the towing capacity so yeah. I used to run all over the country in my old F250 that had almost half a million miles on it, completely loaded down with tools and towing a camper with a combined weight of about 10,000 lbs with no problem.