53-56 F100 Hubs

I have several Hubs that have gotten mixed up over the years. Is there an easy way to ID 53-56 F100 Hubs? Such as the distance from the seal surface (if it was laying on a flat surface) to the face (wheel contact surface)? Thanks

I have a set of backing plates but I not sure which hubs, if any, I have go with them!

 

this is like the introduction section ( read the sticky not of the intro forum )

once the introduction has been made, than you can post your question(s) on the other section of the forum ...

 

Thanks