slow spin and tub squeal as agitates back and forth

[giwatcher]

Model Number: GTWN4450M1WS
Brand: GE
Age: 6-10 years

Hello: unit has always sounded like a jet engine taking off on spin cycle, but it never walked around, so we ignored it instead of getting a warranty call, in retrospect a bad move, I know. Many years and many uses later, I notice a squeal/chirp as the drum agitates back and forth. When it gets to the spin cycle, the jet engine is gone, but the speed of spin is reduced, so that when wash is complete, the clothes are wetter than usual. I can redo the spin cycle and get reasonably dry for placement in the dryer.
A small load spins better and comes out drier so that repeat spin is not needed.
Any chance the jet engine sound is normal, since nothing untoward has occurred over many years?
What to do about the slow spin with squeal/chirp that leaves clothes wet?
Thanks

[Doc Ryan]

Are you able to upload a video to youtube and link it here showing the problem?

[giwatcher]

Sorry, don't have that skill set yet. I can say that I checked the belt, not loose or frayed. The jet engine during spin is gone, it sounds like it should, if I didn't have the history of this washer, except now I can easily wring water out of large items, and used to this was not an issue. Even an extra spin cycle doesn't help, and I can tell the spin speed is not as fast as it used to be. Any thoughts are appreciated.

[Doc Ryan]

From what you are describing, it sounds to me like the mode shifter is probably failing. If the seal on top fails, water will leak into the bearings and cause it to get noise in the spin cycle and it can also cause it to squeal or chirp when agitating.

GE Washer Shaft & Mode Shifter - WH38X10017 (PD00001215)

[giwatcher]

Appreciate the reply. Since this jet engine noise existed from day one brand new and it is now 8-10 years old, do you think it would plod along for that much time without a catastrophic failure?
Also, the chirp is gone and the jet engine is silent now that the spin is no longer super fast. With the failure you mentioned, should it still be jet engine loud? It would appear to an uniformed observer to be working properly except for having to hand wring the clothes after spin. There is no water or oil on any part I can see with the panel off, and nothing on the floor. Does the timing of the noise for many years but proper function during that time still seem like the failure you are proposing?
Thank, and happy holiday.