Packard 5 on 5 1/2 Hub Interchange Questions

I have a 47 Packard Clipper parts car and I want to use the wheels for a project. They are 5 on 5 1/2 same as Model A hubs ? I understand that the center hub diameter is rather large on the Packard wheels... what will these interchange with? Thanks

 

anyone?

 

Figured I'd ask 1 more time...

 

Are you sure the wheels are 5 on 5 1/2? I thought they were 5 on 5..