Here is a good used OEM fan spacer.  It is for mopar applications.  It is part number 2265037.  It measures 7/8" tall, see pic. It has a '66 date stamp .    Shipping via USPS ground advantage.  I ship out same or next day, and will always combine shipping.  My husband and I had a machine shop.  He passed, leaving me with lots of shelf inventory.  I am gradually pulling inventory off shelves and listing, so be sure to check out my store often for more great deals on mopar goodies and more!