Listen to a few seconds of this video (don’t listen to the entire thing because it’ll eat your brain):
Sounds remarkably similar the sound that bad tub bearings will make. This particular washer is only three years old– very early for tub bearing failure.
The actual problem turned out to be something very simple: a loose concrete counterweight mounted to the front of the tub. A few minutes with a wrench and problem solved– no parts needed for this repair!
To prevent the problem from happening again, add Loctite to each of the counterweight mounting bolts.
To learn more about your washing machine, or to order parts, click here.