Rear outer tub bearing wore out?

I just replaced front outer tub I assumed overloading wore this part out… but after assembly of the new part I think the rear bearing is going out …its making a loud vibration during fast spin. Is rear bearing wear common in this model? Can the bearing be replaced without spending $425 for the whole plastic assembly?

After reading the other stories about front loaders it seems to me that the bearings are shot and a top loader is my next washer.