I determined that it must be the main shaft seal as the source of the water leak.
From online videos, I learned a water leak through the shaft seal would cause the bearings to fail.
The failed bearings were causing the jet engine-like noise.
I watched a number of repair videos that showed me how to do this repair.
I decided to order the seal, bearing, shaft, and bearing installation tool.
I ordered parts on Friday and received them on Tuesday.
It took about 3 hours to do the repair. I would say, it was difficult but doable.
The satisfaction of completing the successful repair was a reward in itself.
Plus, I saved a lot of money by not having to buy a new washer or deal with an appliance repair co.