Seized brake drum on truck

[nutwood]

I'm being annoyed by a seized rear brake drum on my D1910 (Australian 7 ton truck).
The shoes have grabbed somehow and it's solid. I can still turn it with the engine but no other way.
The obvious hassle is that I can't get the drum off to find what's wrong. I've got the wheels off, the axle out and the wheel bearing nuts off. I put a chain on to it and pulled up about 3/4 ton pressure while I massaged it with a 14lb sledge hammer but no good. I've tried putting the axle back in and forcing it in reverse with the engine whilst tapping but no good.
The only other two ideas I have is to leave the wheel bearing nuts off but put everything else back on, then drive around the farm till the back wheels fall off! Other option is to fabricate a big puller around a ten ton truck jack and really force it off.
Anyone got any clever ideas? There must be a smart way to deal with this problem. The adjusters are rock solid but I've a feeling that they are simply rusted. Not sure they'd help anyway. I reckon a shoe is somewhere it shouldn't be!

[baldscout]

If your adjuster is rock solid and cannot move, it's probably rusted (or stuck) with the shoes all the way out. Try to break that thing outta there if you can; otherwise, you'll need a hefty puller to get the drum off. Driving around with the nuts off may work, but you've probably got a groove going in the drum that's catching the pads.

Someone else may have another idea to help you out.

[nutwood]

Thanks for that Baldscout. I've been asking about and that's about the strength of it. The only professional I spoke to said that I should just get the grinder out and slice the drum up. "Easier to replace the drum than muck about and still end up replacing the drum"! I suppose that in a shop, time is money and the customer won't complain if you tell him you had to replace the drum but he will if there's a huge labour bill.
Anyway, I solved it. Made a spreader out of 3" angle and bolted it to the spider, then a frame out of some 2" x 3/8". Put a ten ton jack in, with a bit of solid bar up against the spindle. Pumped jack, drum came off. Protested a bit but probably only took about 5 or 6 ton force.
Truth is, it only took a bit over an hour to make the puller and get it off. I spent much longer the day before fiddling about!
Haven't pulled it all apart yet but it looks like one of the hydraulic cylinders (2 x double acting) is jammed/rusted in the operated position.
I'm happy. I know why it was a cheap truck now as it was obvious that someone else had tried to get it apart not long ago but no-one's actually got inside for a long while.