Rattle between block and trans?

The shaft bushings wear out, kind or rare actually, I can change them but unless it is something special I strip them for parts. Biggest thing with the dist is making sure the curve is close or the same. Years really do not matter that much, just did one for a member that is going into a 273 right now then into a 340 and all he has to do is change the vac advance, actually amazing what you can do to these with oem parts.