1972 Plymouth Duster Alignment failure

PHOTOS in a case like this are a helpful starting place.

The thing is, mechanical interference should not be a GUESS, ---it should be an either "yes" or "no" thing.

Get somebody down low and work the steering from stop to stop. Jounce the suspension. Watch for contact and interference

or rig a camera (Gopro, etc) and see what the suspension/ tie rods/ center link does.

Alignment that is out so far or "changes so much" as to squal and wear the tires is NO WHERE NEAR close.

Last, with interference as you describe, you should be able to FEEL it in the wheel. Going around corners, etc, the wheel should "stick" and require you to "horse" the car back into a line

The only time I've experienced this was with (the much hated) Hedman headers which have some of the tubes under the steering linkage.

With some cars, with worn or broken engine mounts, the steering rubs the headers. Adding throttle around a left turn causes it to BIND not RUB, and BELIEVE ME you will KNOW this is happening!!!!! ! ! ! ! ! !!!!!

I looked up the word "scary steering" in the dictionary, and this is what I found: