how do i remove these drums?

so I picked up an A body 8 3/4 rear end the other day and it has 10 inch drums on it (I think)
they are the bell type drums

i backed off the adjusters to loosen the shoes up and when i put a screwdriver between the backing plate and the drum i can wiggle it but they refuse to come off
it almost seems like the drum is still attached at the very center of the axle

there is a cap in there (hard to explain, ill try to post pics tonight)
is there any chance this is threaded?

of do i just need a bigger hammer?

That is the end of the axel,not a nut as said before.( DO NOT HIT ONE HAMMER WITH ANOTHER) not safe !!!!. . Make sure you have backed off the shoe adjusters all the way clean axel and drum where they meet, spray with blaster also spray around and through the studs Use a large drift pin (1 to 2 inch ) hit the drum between the studs a few times then hit the drum around the outher edge with a hammer, in the aera next to the weight and around, or a hard rubber one if you wish to reuse the drums . If this loosens the drum but dosen't come off the shoes are sticking on the rust ring on inside of drum most likley. Work the drum forward & aft directions and pull toward you at the same time. Hope this helps
Jack Arnew Suspension Systems