Ditto wicked72ride's question. Why would it matter if the drum were flat across instead of the bell? Seems like he would just have a slightly wider shoe area that go unused, but that shouldn't matter. I doubt the bell is needed to clear the wheels.
Indeed, why couldn't he install wider shoes to match a wider drum? Seems worst case might be he has to also change the wheel cylinders if the fingers aren't in the right place for the shoes. Would the e-brake linkage be an issue with wider shoes? Sounds simple, but when you start swapping parts ...
