Have a 29ft sunnybrook harmony and tow it with a 2013 F150 ecoboost with the tow max package camper is approx. 7500lbs and tounge weight approx. 800. the hitch is the reese with the trunion bar 1200lb and dual cam sway control, I set it up per instructions but when driving in a fairly stiff cross wind it likes to I wouldn't say sway so to speak but gets pushed around a lot. the truck sits approx 1 inch less than when its unloaded and the trailer is very level. it requires constant driver input to keep it in a straight line. I filled the rear truck tires to the max {44psi} but it didn't help much. I almost feel the tires have too soft of a sidewall and may be part of the problem? im not sure what to try next im hoping someone has something for me to try..thank you for any help also my old truck was a 2011 f350 and with no sway hitch you could barely tell it was back there!

What kind of cross winds were you experiencing? I just came back from a trip to the Midwest (Minnesota and South Dakota) and while crossing SD we had sustained winds upwards to 40 MPH. Made driving miserable. I, too, have a Ford F-150 but my trailer isn't quite as heavy as yours.

It's wind, you're going to move. Pulling my 24' TT home this weekend with my 3/4 ton, I was pushed around with the cross winds.

even a class "A" MH is a handful in a stiff cross wind. When I had TTs, they were a hard pull in a cross wind. Now pulling a PUP with a mid size SUV (Jeep GC), in a hard wind, it can be a force.In a nutshell, a cross wind is going to cause some moving around, even if you are driving your little DD car or truck empty.

Seems like business as usual to me for towing in a heavy cross wind. However, you should not experience sway, the rig should be pushing as one. If it is not I would re-examine your DC set up. Thanks!

29 feet of sail, and stiff wind. Yep, It's gonna move.

trailer being pushed around by wind | Good Sam Community

brulaz
Explorer
Jun 11, 2013
MN Lance wrote:

...
could a axel alignment problem cause the trailer to slightly dart back and forth causing the condition I explained in my original post?

also has anyone tried to warranty anything like this through lippert? my dealer a couple months ago when I brought up my tire issue said they don't warranty axles because they don't know if you hit anything
...

Yes, I would definitely get that axle taken care of first, then go from there.

And if your dealer isn't going to help on a warranty repair then you could well have troubles getting your money back. Probably best to take it to a good frame/suspension shop and have it looked at.
mister_d
Explorer
Jun 11, 2013
I had nothing but problems with the dual cam and getting it set up correctly but I was one of the few. The majority of owners are very happy with theirs when dialed in correctly (which is why I had originally purchased it).

There aren't many F-150's towing TT's your size that aren't "close to overloaded" when talking payload. I with the crowd saying you need to get some real numbers.
TomG2
Explorer
Jun 11, 2013
I may fall into that classification also, but I do think the truth is in the OP's post, "my old truck was a 2011 f350 and with no sway hitch you could barely tell it was back there". The F-350 probably had double or even triple the payload of his F-150. Go to the scales and find out how close to being overloaded you are. It can be disappointing. BTDT, now have a 2500 series.
SprinklerMan
Explorer
Jun 11, 2013
I was thinking the trailer may be a bit low on pressure
Gdetrailer
Explorer III
Jun 11, 2013
SprinklerMan wrote:
That tire presure may also be a bit light .

If you are talking the tire pressure of the VEHICLE then you are dead wrong. The OP has a F150 which will have as standard equipment P or PASSENGER TIRES. 44 PSI IS the max pressure of those tires.

As far as I am concerned, what the OP is feeling would be pretty much NORMAL when going from a heavier and STIFFER suspension to the softer almost mushy "caddy" suspension of a F150. The OP DOWNGRADED the tow vehicle and can FEEL the difference.

The problem is most folks who have 1/2 ton trucks just don't "get it" since they have never experienced a better platform...
SprinklerMan
Explorer
Jun 11, 2013
That tire presure may also be a bit light .
mosseater
Explorer II
Jun 11, 2013
I'm not going to disagree with Barney. Your set up, especially with that truck/trailer combo, is gonna be more critical than a bigger truck. I'll just add that thanks to the help I've gleaned here, I have mine set up about as good as one can, and in cross wind, even with my HD payload package 150, I still have to drive it. Constant driver input...yeah, got that t-shirt on the way back from Indiana. Didn't really occur to me why I was fighting the wheel until we got out at a rest stop. Probably 30 mph winds! The close home we got, the less the wind effect, then it was back to normal. You're towing a giant brick down the road, after all.
MN_Lance
Explorer
Jun 11, 2013
Thank you for all the thoughts/info I think I discovered another issue I need to solve first before doing more with the hitch setup. since I got the trailer 1 year ago I have noticed that one tire was almost shot after approx 1500 miles last year so this spring I swaped it for the new spare and I have only taken 2 trips this year for a total of 450 miles and can see the new tire is already starting to get chopped!! with the trailer sitting level and no side pressure from turning on either axle I put a straight edge across both tires from front to back on both sides and one side is right on and the other side with bad tire I hit 3 of the tire walls but the one that is wearing funny seems to be toed in 1/4 to 3/8 of a inch! I know people are going to say this is the wrong way to do it but it gives me a pretty good idea that I have a axel issue, which leads to the next questions.

could a axel alignment problem cause the trailer to slightly dart back and forth causing the condition I explained in my original post?

also has anyone tried to warranty anything like this through lippert? my dealer a couple months ago when I brought up my tire issue said they don't warranty axles because they don't know if you hit anything....any thoughts?

thank you
BarneyS
Explorer III
Jun 10, 2013
MN Lance wrote:
Snip... it requires constant driver input to keep it in a straight line. Snip...

This sounds like the classic case of the WD bars V not being centered EXACTLY on the cams when the trailer and truck are lined up straight. The cams are constantly fighting with each other to keep the trailer in line. You need to get down and look closely at the cams/bars. See this post by member JBarca that shows pictures of what I am talking about. The other things mentioned by posters above could also be contributing but I would re-examine the hitch setup first.
Barney
foneguy493
Explorer
Jun 10, 2013
remember your towing a billboard ! wind will allways bbe a factor. mine is no ligghtweight by any means ive had constant winds slow me, push me along and 1 time slide me sideways, that was a 70 mph + microburst that was part of a tornado. my advise is super high winds simply slow down.