waser makes loud screeching while spin cycle

My washer makes a loud sceeching sound only in the spin cyle. Any ideas why?

When seal is bad does pully wing goldish brown grease/oil all over the bottom of the machine?

I have a similar problem SCREECHING

1st problem is the drive belt burnt at the small pully side and broke from a freeze up or something.

Put a ribbed type auto belt on that we matched to see if the tranny blew or if it still spins. It spins and agatates. Does full wash cycle - wash, rinse, spin.

Now getting Very Loud screeching when it starts to spin and continues until it reaches full speed - then gone.

Also If I put some pressure pushing the motor back is is not as loud, still screeches but reaches full speed quicker

Brakes fine and quiet.

Machine has a metal drive pully and it Sounds like metal on metal at the bottom of machine.

No metal filings under the machine.

Occosional burst of the same screech during wash / agatate/ rinse cycle.

Completes full wash cycle and runs pretty good but the screeching sounds like it’s gonna blow up!

Helpl I want to fix it, 20 years new and counting.

Thanks.