Can trailer tires cause trailer sway? I have a 2015 jayco 26bh and I am sure the hitch is setup correctly, but I am getting more sway than I would like. When a semi or a truck pass by it really pulls ...
Is what you are really getting sway, or just getting pushed by passing vehicles?
Even if everything is set up correctly I would think you can still get the push. Sometimes I get a push even from cars/vans/pickups passing if they are going substantially faster then me. Bigger the speed difference, more pronounced the push is.
If you have a oscillating/back and forth sway after the push, that that is a problem.