Agree that petroleum based solvents are bad on rubber brake parts and linings. I'm also thinking a propane torch wouldn't help rubber parts much either. But the OP is planning on rebuilding things anyway, so whatever it takes should be the process.
With Bendix brakes, all the brake parts can be disconnected from the backing plate to allow stuck drums to be removed. Unbolt the wheel cylinders and the anchor bolt and cut the heads off the two brake shoe hold-down pins will free up the shoes and other parts to come out with the drums. The only issue with that is that the axle flanges on the rear brakes, and the parking brake cable would hang things up.

Last edited by klhansen; 09/25/2024 9:38 PM. Reason: clarified

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.