MT WASHER AGITATOR SHAFTS
The orbital transmissions had problems with the shaft coming loose and they won't spin when this happens. !st question how old is this washer. If its under 10 years old you can get a free transmission from MT now WP. If its an orbital trans 1991 on the repair isn't always to bad but maybe still more involved than you might want to get into. If it has the earlier style trans the screw on the top of the agitator shaft may have broken, this was a very common problem with the first helical drive machines in the late 1950s. In any event you have a major repair on your hands Good Luck.