the most difficult part of this repair is having paitence.
the unit come aprat pretty easily but the knucklhead engineer at ge like us to bang knuckels...
http://www.appliancepartspros.com/part_details.aspx?part_id=2619300
the link above is for your part
no heres how to get it
depending on your model there wil be two screws going up from the ddor frame into the top
iof the are not there your top is hel don by two snap clips that can be pushed back with a putty knife between the fron panel and the top
once the top is of you will find twop screws on the inside edges holding on the front panal
once those are off the panel should lift up and off
becareful, of thee wire harness it should have a quick disconnect but not just roll the door to the side
once the door is out of the way
go under the tumbler and take a pic of the belt threading,,, or 2 , it can be confussing
lift the idler and take the blet off the motor
you should be able to lift the tumbler about 1/2in
and pull straiget out the front
from there ou should see how to replace the bearing, it only swapping out the clip,,,
make sure you do both the rear wall and the rear of the tumbler
hope this helps
have a great day