I'd like to mention that, in years gone by I worked at a tireshop as a alignment tech. I have watched those guys balance troublesome tires, to perfection yet they would shake the car. I have seen; out of round tires, and tires with cord problems; in perfect dynamic balance on the machine produce a vibration on the car. And sometimes, we could not find any problems with the tires at all yet they Shook.
Sometimes just making the tires run in the opposite direction, solved the problem.
But if not, a new tire always cured it.
I couldn't believe it the first time my boss asked me to put the tire on the other side of the car. I thought to myself, what a dope. Boy was I glad I kept my usually energetic trap shut! Sure enough the problem , in this case, was resolved; and many others cases besides.
Jus saying, tires can be wicked sob's