Speaking from experience with Fords (but a Ford fan):
You're going to be disappointed with the rear end squat of an F-250 pulling a 14K lb fifth wheel with 2500 - 3500 lb. of pin weight. While that would be perfectly fine for our 9400 lb fifth wheel we wanted to be able to upgrade to a bigger trailer in the future without having to upgrade the truck, so 350 works for us. I actually think that 14K is about the limit for a 350 SRW--over that I would go to DRW. If one trades trucks every five years then 250 now and 350 later is no big deal. Back in 2012 when we purchased the 350 was only about $1,000 more. Around IN dealers don't stock many 350s so finding one on the lot can be tough--we ordered, got exactly what we wanted, and could not be happier.
