Did this last week and my e-brake is no longer useless. Bonus less brake sqeeks. Here are some pics I took during to process. I was confused on what the bolts were for at first. Thinking I would hammer them off I broke the thread on the drum so got a bigger bolt and drilled it in pushing it off the car.
The bolts go all the way through pushing them off. It will make a pop sound and brake dust will fly.
Rear facing shoe.
Front facing shoe looked slimmer than the rear.
After all is sanded,cleaned,and put back together this part with the teeth needs to be turned from behind the drum with a flat head screw driver until you fell drag on the rotor.
The plug you want is pill shaped. It will take a few trys to get it lined up. When tightening you'll hear clicks but not when loosening.
This side was tricky because a shim was needed for an alignment so I broke off the excess to get to the plug.
Hope someone can now do their brake cleaning faster by learning from my mistakes/spots I was stuck on.