Hi all. I haven't posted in a while but I must on this one. While I agree that is an impressive UOA the owner of that truck is grossly negligent! That truck is grossly overloaded and he is a danger to everyone on the highway. I pull a 42 foot fifth wheel CAT scaled at 16500 pounds with a 3800 lb pin weight. I also pull it with a 2019 F350 dually with 5250 pound payload rating. Naturally the truck pulls it effortlessly but no way would I pull it with anything less. Fellow RV'ers on here know how people cut you off, slam on the brakes in front of you, etc. NO WAY that truck has enough brake to stop a trailer that big. The rear truck tires are probably overloaded by double their rating, WHEN, not if, one blows out it will be an ugly scene. I promise you someone will get hurt. I implore the OP to have a talk with his buddy and encourage him to search the web and RV owner sites and get some input and advice. Proper tow vehicles are expensive but how much is your families life worth to you?? Rant over lol