I pulled my 41’ 5th wheel with my stock F250 with no issues, but I also don’t pull very often either.
Towed it through the hills of northern Arkansas all the way to west texas without a single issue.
Surprisingly it only squatted it 2”...
I also went with the B&W companion slider and it worked great.
Exhaust brake worked good but dodges brake is better (I’ve had both)