You could un-do the Wheel Cylinder...un-do it's Brake line at it's back...un-do whatever Brake Shoe retainers there are, ( make sure parking Brake is off and or even give it some slack on it's adjusters,) and, try pulling the Drum again, seeing if the Shoes and Wheel Cylinder and whatever else, will merely come off with the Drum.
Drum may be pretty worn and have a 'ridge' on it's inside edge, hanging up on the Shoes...even a very slight ridge can really hang up pulling the Drum sometimes.
I am surprised there is no access 'window'to be seen for adjusting the Brakes.
I woujld have expected two small 'slots' for that, one on each side of the Wheel Cylinder's mid area, for reaching in with a little Screwdriver or small lever, to turn the Wheel Cylinder's End Caps.
Last edited by Thriftmaster_Phi; 08/31/2014 10:30 AM.