Albany County New York
Sorry to take so long. I have been traveling and speaking for the last two weeks.
No, I am not aware of any grape rootstock which is promoted as tolerant to black walnuts. I have seen black walnut affect vinifera plantings.
In looking at plants that are tolerant of black walnut I see wild grape listed in some lists (probably all copied from the same initial source) but the species is not identified. Vitus riparia is the common river grape and a common northern wild grape.. Riparia Gloria or Gloire de Montpellier is a pure riparia rootstock. It would probably be a good choice for a rootstock. 3309C is a riparia by Vitis rupestris rootstock and commonly used in North America. I think it was the rootstock used in the vineyard that did not tolerate juglone from black walnut.
Oh well, I was hoping for a secret from Mother Nature. Thank you very much for the reply.