Packard #384215 inner crosses to SKF 15176 and #446133 outer crosses to SKF 22390.
If those are the correct parts number seals needed for your car you can go to the SKF website
http://www2.chicago-rawhide.com/ Enter the SKF numbers in the part lookup to verify dimensions.
If they look correct, Napa uses those same SKF numbers under their own NOS (Napa Oil Seal) brand offerings.
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