Turned the lip off one of the brake drums, after fighting with the !@#$!#$ blasted !@#$!#$ sum !@#$!#@$ biscuit to get it off. Shiny area about 4 o'clock in the picture, about a quarter inch wide.
Ive done something like that with nearly every rear drum brake vehicle Ive ever had, bolt the drum on backwards, run the truck in low gear to spin the drum, and while its spinning take a angle grinder and create a 45 degree angle at the edge of the drum where that rust ridge would form. Drums come right off then, every time! Of course its not as much of a issue with my current ranger, since I have no parking brake cables or the self-adjuster hardware I usually pull the drums at least once a year to manually adjust the brakes.