Hy 57NAPCO, adjusters can be a real bear at times, have you tried a punch and hammer through the adjuster hole, sometimes the shock of hammer blows will break them free. You could also try using a puller on the hub, pull against the end of the axle tube, but protect the end of the tube. Pulling in this way will definately ruin something, but short of torching an access hole to deal with the stuck adjusters, sometimes it is the only way to get things apart. One other thing you might try is, unbolt the wheel cylinders from the backing plate, and knock them into the brake drum, this may allow the shoes to collapse enough to allow the drum to come off, hope that helps, and good luck!