does anyone know the diameter of the small bolt pattern axle flanges?

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1966 Plymouth Valiant, 225, 3 on the tree, 8 1/4 3.21 sure grip, hyperpac, holley 650dp, holset h1c

I don't know if they are the same, or not. 7 1/4 rear or 8 3/4 rear?

Edit: Went out to the shop and measured.
They are both the same. just a "tick" under 5.300 inches. They vary a little bit, between 4 axles

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

thank you

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1966 Plymouth Valiant, 225, 3 on the tree, 8 1/4 3.21 sure grip, hyperpac, holley 650dp, holset h1c