These came off my 88 TBird with a 5.0. I think the mounts are about 8 years old. They need new rubber upper bushings, which I am sure can be purchased from Chuck W. The lower urethane bushing looks good.
75 shipped.
(http://i1226.photobucket.com/albums/ee411/8289ta/chuckw2_zps625ec8a4.jpg) (http://s1226.photobucket.com/user/8289ta/media/chuckw2_zps625ec8a4.jpg.html)
Those are pretty old.
Just buy new poly (I never used rubber) bushings HERE (http://www.energysuspensionparts.com/proddetail.asp?prod=9.4102). Those are what I'm using for isolators in the current stuff. I don't keep extra bushings on hand to sell.
OK - thanks for the link Chuck.