You'll need to try them out with a wheel or something because they could be 4 1/2" and 4 3/4" for GM wheels! Hard to tell off hand.
Is this a picture of the parts you have for sale and the picture above is part of these? If so the rotor has been redrilled to accept eith pattern while the hubs have been modified to the larger bolt pattern only.
the person who wants them has the hub for the small bolt pattern so I'm pitching the hubs. Didn't like the way they were drilled and welded.