I realize that you question was" what have you guys done",
I only have done this on my 2wd toyota Ivan Stuart clone that I built,sold.
I like Downeys idea.
when it rotates on the same axis,there is no bind, and no rearward-frontward wheel movement. Its alot stronger to trail this link than to have it lead. cant bend it...........It seems way overkill for what were dealing with on our subes, but its a solution,,,,,,,,,,,,,
and with you being one,if not the best fabricator on the usmb, should be a breeze with that awsome jig you have in your shop.