Drums don't fit??

9.1" diameter is beyond specs. You really should buy new drums. That won't help your current no-fit problem though. It may be the E-brake cable has been adjusted up too tight. If the adjuster is backed off all the way and the shoes are up against the upper anchor, you may have the wrong parts in there somewhere. Did you put a new hardware kit in it? Make sure the adjuster and other hardware matches your old parts. Post a good photo of the assembly.....maybe we can spot something.