Sway Bar Bushing Question

The sway bar was on Dart when I bought it, so guess it is after market. Do not know who made it and seller passed away several years ago so won't be able to find out manufacturer. Have looked on bar but can not find any markings.

But I think that I have solved the problem. After reading everyone's suggestions, for some reason Oldmanmopar caused a light to go off in Olddman's head. Looks to me like the old sway bar brackets that go around the bushings aren't compressing the bushings. Don't know why I didn't think of that before coming here! Going to get some new brackets or get complete bushing kit.
Thanks, Oldmanmopar and everyone else who gave me suggestions. Will let you know what happens or if any other problems crop up.