Originally Posted by ZOZ
Anything 25" or larger needs a 2500 tow vehicle.
I tow a 28' AS with an F150 with 3.5 ecoboost and it does just fine. As have many others on this forum. 1/2 tons work quite well. My 1/2 ton is rated to have a 1250lb hitch weight and tows 12,500lbs. Remember the 1/2 ton of today is the 3/4 ton of 10 years ago.
As to the OP.
1) You're on the edge, and you will not necessarily like the towing experience. I have a friend that had a lessor truck and when he bought the F150 Ecoboost with higher towing specs he couldn't believe the difference. Being on the edge is no fun.
2) One of the reasons your tow weight is where it is at is the hitch weight is limited to 10% of your towing capacity. I can tell you right now that a 25' AS will have a hitch weight over 700lbs and closer to 800lbs when loaded (maybe more). Many say 1000lbs. When mine is loaded I have a hitch weight of around 1000lbs. Some of it depends upon whether you have a front bedroom or rear bedroom. Most of the storage is under the bed and that's why hitch weights go up significantly for front bedrooms.
3) Your hitch weight is determined by how stable you truck will be while towing.