The bushings you are speaking of have a fair amount of play even when "new"...   I've already run into this...   Kawhead might have new bushings?  I don't have any...    I get split bushings made through my machinist with a tighter tolerance. Even though the bushings are designed to wear faster than the shaft itself, there is always a little shaft wear over 30+ years of use which is why even new bushings aren't a perfect fit. Obviously better than the old, worn ones though.  Check ebay if you can't find any through here.