GE GSH25JGDD WW making fan noise

This refrigerator is 9 years old and I think the defrost fan is going bad. It’s starting to make a higher pitched fast chirping noise intermittently when it’s on. I opened up a panel from inside the freezer and got access to it and if feel like maybe the shaft/blade connection may be wearing out and causing the noise…? At any rate, I need to figure out what part I need and how to repair it. Thanks!

https://www.appliancepartspros.com/freezer-section-parts-for-general-electric-gsh25jgddww.html

Part 610 is the evaporator motor.

https://www.appliancepartspros.com/ge-evaporator-fan-motor-wr60x10185-ap3875639.html

There is a video too. Good luck.