Americas toughest truck

just saw in on History channel Top Gear...Chevy 4X4 stepside won with 220,000 miles on it. Old Ford F250 4X4 broke a U-joint or a deiveshaft, couldnt tell. Newset truck was a Dodge Ram 4X4. Looked the meanest, but developed some engine trouble. Toyota V6 was support truck and seemed to take everything in stride. Probably a lot lighter and better HP/weight ratio. They all got beat up (they ganged up on the Dodge as it was the straightest in the bunch) but the Chevy outlasted the other 2 US trucks. Wonder what happened to the Dodge? Looks like he overheated it as steam or smoke was coming out the grill and it was very slow cranking..threw a belt or is it serpentine? Kids enjoyed it, lots of nice Alaska scenery shots. My oldest is now a Top Gear fan....