New wheels , Wrong lugs

RustyRatRod said

Correct. But knowing WHAT shank length will prevent you from getting the wrong lug nuts. Who's to say some lug nut doesn't pack the wrong lug nuts?

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Thread size will get you the correct nut. There's only 1 7/16 nut. It sounds like Summit contacted Cragar and the 7/16 nut is for the small bolt wheels. Only 1 choice.