Real common and I just did it a few months ago. Here's what you'll need for a complete rebuild.
bellcrank- right and left
bellcrank mount- right and left
2 cable assemblies these are internal to the drum and go from the bellcrank to the actuating arm
2 sets of shoes
2 seta of associated pins and clips for above parts
not that pricey and not that hard to do. I tried cleaning the above parts first but that only lasted about a year and still didn't feel right.