How to fix a Kenmore (made by Frigidaire) top-loading laundry center that squeals like a bad opera singer
Most likely the spin bearing.
It's attached to the center of the
outer tub....complete dismantle
of the unit.
I would also recommend that if you are going
to do the repair that you also replace the seal.
Tub Seal Link
Spin Bearing Link
Source: Kenmore Laundry Center - 417.99680210