Product review (5 stars): Saved my washer!
I have been hoping my ancient (almost 30 years old) washer would die so I could justify getting a new front loader.  Then I heard a story about the "maker movement" - which includes repairing things.  They said that you don't really own an appliance, if you can't fix it.  That made sense to me, and I thought about how a new washer would probably have lots of electronics that we could never fix. Cue washer making the right noises but not agitating. YouTube showed us how to diagnose and treat, and this was just what we needed. Took apart the washer, following the YouTube instructions, put it back together, and I'm expecting another 60 years!
The piece we removed was pretty poorly designed, entirely plastic.  This is much better.