Edit: What's the likelihood that E-body and late-B body links would interchange? Seems like most everything else "black metal" does.
E body is no dice. They use the traditional type where the sway bar is mounted to the frame and the ends connect with the link.
The 73 and up B bodies have links like yours where the end of the bar mounts to the frame and the bar itself is supported by the links.
Finding usable ones like yours are hard sometimes.
Maybe you can get somebody to weld a bolt to that one to save it?
