New to the forum 73 Dart

Hey everyone, I've recently bought a 73 dart swinger slant 6 car. Finally made my own account after reading a lot of the forum. My car has drums all around, pretty rust free besides the rear pans that got a shady fiberglass job and some pretty bad bodywork in places but its a 10 footer. The problem I'm currently trying to tackle is the rear brakes have seized and I can't for the life of me back the star key off to get the drums off, any help would be greatly appreciated.

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