[35fordtn]

Yes there is minimal difference between the 68 and 11a shaft and the rotor fits fine. In fact I have before, bent the weight springs around and used a 11a index plate on the 68 shaft and weights and been able to get it to perform identical to a 11a on the machine.

You can use the later rotor as well but if you do, you have to use the later inner caps. Also in the 32-36 distributor if you use the original rear cast iron housing you have to remove the grease shield inside when converting to later guys (easy with a screwdriver to do) or just use the later iron housing

Mac Van Pelt or Fred Wilner likely has the shafts. We are down to around 70 of them so I need to hang onto them for customer rebuilds