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I also wanted to mention wiper fluid is used as lubricant so run washers for a minute after replacing to see if that helps. Let me know how it goes, thanks.
That would mean the wiper arm on drivers side is bent. You will need to twist the wiper arm back into place until vibration stops. You can compare it to passenger side to see which direction it needs to be bent. Let me know if you have more questions or run into questions, thanks.
Then last step would be to replace the wiper arm as there is nothing else that could cause this. Let me know if you have more questions, thanks.
Just the wiper arm which is the "top part" the part that goes to motor is the wiper linkage and that wouldn't cause this. Let me know if you have more questions, thanks.
There are special tools used to adjust wiper arms, I think your better off paying dealer $100 to correctly adjust then replace wiper arm. Because even with new wiper arm it may need to be adjusted. Here are instructions to adjust from manual, let me know if you have more questions. I do not have part number for wiper arm. Thanks.