source for original style rubber strut rod bushings 1973 Dart ?

The Moog K7068 bushings are out of stock everywhere. Summit shows a Delphi TD4884W as being the same and available for 7/11/22, but who knows. The Moog bushings have been basically non-existent for about 2 years now.

Poly strut rod bushings aren't the greatest. There's only one size that allegedly fits all the years, which can't be accurate because the early and late versions of the strut rods use different thickness bushings. The other thing is that the strut rod bushings act in multiple directions. It's better to have stiffer bushings under acceleration and braking, as that will keep the LCA from flexing fore/aft which is bad for your alignment. But, they also have to flex when the strut rod moves up and down with the LCA with suspension travel, and the stiffer poly bushing resists that change too, which isn't good as it will act like binding in the suspension.