FYI, in my experience with Ford, the 350 was only a few hundred dollars more than a 250. You might lose a little ride quality when not towing, but it was a no brainer to go to the 350 for me. I haven't looked at the pricing for the new 2017s yet...
I tow a '16 312QBX with a short bed crew cab F350 diesel. I have a manual sliding Reese, but have never had to slide it for cab clearance. I do occasionally slide it so that I can open the front compartment while hitched.
Paul
|