2006 F-350 with a 6.0 4.10 gear it was a good truck, just had engine issues (like everyone). The trailer had 15k on the axles and I would say there was another 1k on the tongue. Have not weigh the truck by itself yet.
The new truck is much better, the 06 truck had a 50hp programer on it and the 2011 runs much better with less gear.

Forget the car wash and go with 3500hd chevy dually, tows my Nortech like a dream. I like the new Ford dually also just don't buy a old one.

It sounds like the F-350 long bed is the way to go from what I am reading from everyone.
Thanks for all of the input.
Keep it coming.

F350 worked great, but now that i have a Sportchassis i wouldn't ever go back to regular pickup. is it overkill? of course but way better. just no going into a drive thru.

Are you saying your 42 fountain,gas and trailer weigh 18,000 lbs?

I have driven 6 new 2012 f250 fwd extra cab 4x4 with 45 miles on them 500 miles to drop off at a job sight. They felt like the rear tires were low on air. After about 300 mile I would get us to it. I really don't like the way they drive. Go 350 duel wheels. Drive what ever you buy on the hwy. 50 miles or so. Artie

A litte over 16K

If your going SRW save your money and get the F250, SRW 350 does nothing more. F250 will tow that boat fine, but a duelly be better sure, but so would having air force one as a personal jet.

i just picked up a 2011 f350 dually with the 6.7 diesel,it has a 3.73 gear and it tows my 38 fountain like it,s not even their,my 05 f250 with a 6.0 pulled it ok,but you knew it was their,it blew the head gasgets at 78,000 miles,and now that the warranty is over,i decided it is time for it to be replaced.i loved the truck,but the 6.0 l engine is not worth a s hit.

How much of a price differance is there between the same equipped F250 and a F350?