Yeah, done mine several times and originally used a mixture of hammer for lots of persuasion and large screwdriver to try and lever then off without damaging the back plate.
As mentioned above, on mine there was a lip that had formed on the inside edge, where the shoes had worn the drums. You can grind the lip down to make things easier in the future.
"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10
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