I can measure them now. Do you need spindles? I have some stockers as well as some Billet Aluminum Holz spindles. Make me an offer and I'll toss them in the mail tomorrow?
Lower diameter is 7/8" upper one is 3/4". Let me know on the spindles and steering arms.
PM me and we can work something out. I have a fair amount of high end odds and ends from that era, that are now collecting dust. I would be happy to give you a fair price on whatever you can put to use.