Newer GE washers (withing the last 10 years or so) that start to growl
during spin have a main bearing problem, and this will probably turn
into a main seal leak problem too, if not already. My current quandary
is whether it is possible to replace just the bearing (a very cheap
part, but time-consuming to install), or if a gearcase is necessary as
well. Now that you know what it is, you can call around and find out
how much it costs to replace it.