I know many of you have probably experienced joy-con thumbstick drift. It's pretty notorious on the Switch. My wife's thumbsticks started drifting a while back and eventually they just went haywire. Causing double input as well as just drifting.
I successfully transplanted some new thumbsticks and the joy-cons are like new again! It's actually not too difficult. It definitely beats paying $70-$80 for another pair. I highly recommend this. ;D
Here are the guides I followed on their site plus a link to the thumbstick replacements.
Nintendo Switch Joy-Con/Switch Lite Joystick (https://www.ifixit.com/Store/Game-Console/Nintendo-Switch-Joy-Con-Switch-Lite-Joystick/IF378-015?o=3) - You can either get the full kit that comes with all of the tools you need or just the thumbsticks. I already had the tools so I just got the parts.
Left Joy-Con Joystick Replacement Guide (https://www.ifixit.com/Guide/Left+Joy-Con+Joystick+Replacement/113182)
Right Joy-Con Joystick Replacement Guide (https://www.ifixit.com/Guide/Right+Joy-Con+Joystick+Replacement/113185#s216337) - Since the Right Joy-Con contains an antenna plus some other parts, the procedure is actually a little different.
Great Links and topic
@CreepinDeth This is a big help.
We took advantage of the Nintendo program over the pandemic in 2020 to replace at least 2 pairs of Switch Joy-Cons. The drift.... was ... awful. Honestly, I couldn't figure out at the time what replacements would be good... so I opted on shipping the Joy-Cons to Nintendo and letting them deal with it. It was free... and the process was actually very quick.
I think the program is done now. So far, our Joy-Cons haven't redrifted ... and the new pairs I did buy hasn't started to drift (honestly shocked). I have to tools to do this plus many other tasks with screws this size, so I will take advantage of what you posted once I need to replace them again.
Good post!