One day my wife was doing the laundry and the "spider" (metal arm holding the drum) broke clean off. Then I dismantled the whole machine, cleaned it up (never been cleaner), and replaced the spider the following day. Then while I was at it, I figured I should probably replace the bearings as a preventative measure. One of them was seriously stuck. Also requires a few trips back and forth because I don't know which bearing it is until it's out.
You wouldn't believe how clean this machine is now, it's a beauty - some internal parts had corroded so I sanded it nicely, and did an internal paint job. Nobody will appreciate this.
Eventually I fixed it up completely but by then my wife had already bought a new washing machine. Another SAMSUNG! FFS.