Front Drum brake hubs

I hope someone out there can help me, I have a '73 dart swinger with a slant 6 225, it has front drum brakes, I recently bought new drums for the front but I'm having trouble pulling out the hub/lug stud assembly from the old drum to put in the new one, I guess I can always take them to a machine shop but was hoping some of you might have an idea for me!