Dust sheild Gasket/Seal?? where can I find it?

[jbassC10]

I've asked auto zone/O'reilys* etc. and I'm having trouble finding the "gasket" (chilton's magazine calls it) ..its located on the back side of the Dust sheild (1971)....Its needed because Its part of the spacing when you put the spindle on. ??...?? I'm coming to this Amazing 67-72 board talk because I haven't found an auto store that understands the question? lol

any luck where I can find this gasket/seal or buy a new set of sheilds that would fit perfect?? Spacing and all?

the photos are samples of what I'm seeking to find: Gasket-bottom of spindle bar/pole.
The spindle Nut is another question you might have saw on another question I posted.
Thanks!