Had on a f250. As soon as tires got past 3/4 worn-out it would start up. Had front end rebuilt it help.I've been thinking about it since it came up in another thread and am going to try to.explain it.
Ever push a kid on a swing.
By pushing at the same frequency as the swing you can give it a boost each cycle and eventually you have to stop pushing or things get crazy.
The same thing happens on your wheels getting pushed back by the road only one side then the other. The reaction of one side "pushes" the other and vice versa and things escalate. That's the simplest way I can explain it without using math and calculus talk.
It is a very interesting topic and will motivate you to check and maintain your front end, tie rods, shocks, and ball joints etc.
If you've ever experienced death wobble...speak up.
My Ford bronco with 33 inch tires had it bad.