Well, I called ES today. The guy was really nice, but I don't know if he really knew what he was talking about or not. He said that the 5.7114's were the trail arm bushings, and that he didn't think that they made the rear LCA bushings. He didn't have a clue about the 5.7112 part #. He said they would have to change the website because it was wrong in listing these #'s as what they were. I'm not trying to crap on him or any of your info, I was just trying to figure it out so I could order the right ones. He even had me confused about it.

In the end I just ordered the Prothane ones. I called them and yes, #4-304 is the rear LCA's, and #4-1206 is the trail arms (tension struts). Again, thanks for taking the time to get this all out here for us, Rich. It helped a lot, even though I was chasing my tail for a while there.
