Center caps

valiantpatrol said

Are cragar center caps the small dia for 4 lug and 5 x 4" dart/valiant cragars or the larger size for all other cragars ?

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I think they are for 5 x 4.5" bolt pattern as the only cragars that I know my dad had were on his roadrunner, but I"m not positive. Do you know how to tell the difference between which size caps?