anto sway bars on class A motorhomes

Yes a track bar should help. No it will not make it go away.

thank you all--still confused----ok are manufacturers like roadmaster lying to me? I beleive you all. They say it will help. Still not comfortable after 5000 miles of driving.
16,000 pound Ford chassis E450 V10 engine

Which chassis is the Vista built on? What model year is it?
It will help to know that since there are some problems associated with different ones.

harold1946 wrote:
A rear track bar is the most beneficial if the pushing seems excessive. I suggest getting some miles under your belt before throwing money at an issue that may be resolved with more driving experience.
I believe that after time you will learn how to compensate for side winds and pushing from passing vehicles.

X2

Giving yourself some time to get familiar with driving one of these big boxes would be the most prudent thing to do. Be patient. It does get easier with time.

A rear track bar is the most beneficial if the pushing seems excessive. I suggest getting some miles under your belt before throwing money at an issue that may be resolved with more driving experience.
I believe that after time you will learn how to compensate for side winds and pushing from passing vehicles.

Don't think so... There's not much that can be done to offset the giant bow wake of a semi passing you. You just have to learn to compensate in the steering IMHO.