[ERA Chas]

I have the ST bushings too. Memory is poor but if I recall, they are for Camaros/Firebirds of the early 70's, (third gen) like the front spindles from ERA. Bob P can shed more light on the parts-store app. Or you can remove an end link you have, take it to the store and compare to the F'bird/ Camaro parts.
Good luck.