The race Cobras back in the day had brass bushings.
I don't know what the Group 4 Panteras used.
I would say that Delrin is going to be the best compromise on this subject but I don't know of anyone that offers them pre-made, i.e., you are going to have to make your own out of Delrin bar stock on a lathe.
I had a link for someone that would make them for you but it was quite old and doesn't work anymore.
Check with Larry Stock. He may have some already made.
http://www.benzboost.com/showt...ar-suspension-799-95
These actually look very much like Pantera bushings.
Do a Google search. There are actually a few online shops that will make them for you.
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