Have a 17 king ranch with the 6.2. tow a travel trailer roughly 7000 pounds loaded. Prior truck was a 2011 king ranch with the 6.7. I can't seem to get my 17 as stable feeling as my 2011. With my 2011 I rarely could feel it when cars or trucks passed me on the highway. With my 17 I feel even the smallest car come up beside my camper. Using the same weight disturbing hitch as I had on my 2011. Pretty sure I had it setup correct. I know the 17 truck is lighter than my 2011. But I figured with more payload with my 17 I would be even better than my 2011. Suggetions? I have bought a new weight disturbing hitch with sway control. Bought the resse stedi flex system. My old weight disturbing hitch was a pro series one with just the chains. Think it will be better with this new hitch?

 

I noticed more feeling of trailer sway with my enclosed car trailer vs my father's 2007 Chevy 2500hd. Not a good apples to apples comparison due to the Chevy is a 2wd with smaller profile tires but there is an obvious difference.

 

 

I know this might sound strange but try going into the settings and turn off the trucks sway control and see if that makes a difference when towing. Something felt off on mine when towing my TT like the truck was fighting me or my W D hitch needed adjusting. I turned off the sway control for kicks and it towed fine afterward. Might be nothing to it but worth a try. I have a Reese system with dual cam sway control anyway and it worked fine on my previous truck so I know it's a solid system..

 

I wonder what the weight difference between a 6.2 and 6.7 is? I can't say mine feels any less stable than my 2012, but both were/are 6.7's.

 

 

 

Sway control doesn't do anything until it thinks something catastrophic is going to happen. It's a safety thing in an oh **** moment. The dash will pop up a warning and let you know it's taking action. I would leave it on, don't ask me how I know.

My guess is your last truck was probably about 1000 lbs heavier. That's a lot of extra weight and stability at speed.

 

I would focus on the hitch. I know on my previous truck, the difference between a stable rig and an amusement park ride was simply a few cranks on the WD jacks (ProPride), or a chain link or two. I would not expect the settings to be the same from truck to truck.

 

 

 

I owned both 2014 and 2016 F250s before my 2017. Pulling a 7x18 enclosed bumper pull loaded with 4 motorcycles, 2 spares, luggage and some tools the sway is very noticeable on all 3 trucks when passing tractor trailers. This is with standard receiver hitch with 2 5/16 ball and no weight distributing provision.
Just an observation that both editions of the truck have the same problem in my situation. I don't see the previous body style as better or worse in that department.

 

for those experiencing sway, try to move more of the trailer cargo weight forward of the axles.. it really makes a difference..
I can tell the difference with my enclosed car hauler when I don't pull the car up enough.. even pulling with my dually

 

Wonder how does the F-450 feel with now load compared to the steel trucks , I know my 2016 F-450 feels solid even with a Semi blowing by feels like a slight breeze but nothing compared to 2017+ SRW F-350

 

There could be so many things at work here. You didn't mention if the bed lengths are the same. Wheel base has a real impact on stability. All other things being equal, the heft of a truck definitely has an impact on stability. A heavier truck feels more planted and is less apt to succumb to the forces applied by a trailer. The fact that your '17 has a higher payload doesn't mean it is more capable of handling your trailer better, it just means that it weighs less than your '11. All that being said, your trailer is so light that either truck should handle it with ease. Something is not right with your set-up. Check tire inflation, recheck your WD hitch and make sure you have enough weight on the tongue...I like 15%.