need front hub for 65 dart

Hi, so I picked up the free parts from a fellow FABO member last night. (the best people are here) I got the whole spindle drum and everything because he had upgraded his 69 valiant to 10" discs from a Cordoba. Well I go to get the hub out and it seems attached to the drum. Mine is separate. The free one is a little rusty but it did not want to come apart. Do I need a different part still? Here are some blurry phone pics, my kid took them because my hands were covered in grease. The first one is the drum off the wagon. The next 3 are the new one. And the last blurry pic is the hub still on the wagon.

What can I do?