I have a ge top load washer that the tub is off balance.

SOURCE: washer tub goes off balance every time and washer walks!

there may be a possibility here of the centre hub being worn or the liner tub bearing being worn due to the age of the machine.. here is a list and diagrams of the parts you may need and can get from here:-
http://www.easyapplianceparts.com/MultiModels.aspx?ModelNum=mat13mn&searchTerm=img_CW17-6&RefineSearch=0&imgMfg=Maytag

try to check for slackness when the tub is empty causing a rocking/slapping motion whilst empty. if the tub is used regularly and to its maximum capacity then the likeliehood is these bearings/hubs may need to be replaced.. the "walking" across the floor will be accented by the amount of items plus water in the tub. and if the tub is off balance,then this will be more highlighted when also full of water and items... if you feel this is over the top,then try to lighten the load that is in the tub at any given time. this will determine weather the bearing has indeed worn .the lighter the load,the less "walking the machine should do in cycle.. the only time walking would be unchanged is during the spin cycle,when the speed is of a constant one and it will vibrate at the same rate. placing it on a rubber mat is not a solution but just something that will make you hopefully think it is solved
and you may as well just bolt the machine to the floor and hope for the best

SOURCE: GE washer won't agitate

I had this same problem with our GE top load washer.  I just needed to pull harder.  (Note: The agitator is held in place by about a dozen L-shaped clips in a ring around the agitator's base that will release more as you pull harder on the agitator.)  Everything from the base below the large fins on up comes out together.  Grab the shaft above the fins and pull slowly and hard. I had to take the entire tub out, lay it on the porch, put my feet inside of it, and pull the agitator assembly out.  I wasn't able to pull it out while it was still in the washer.  BE CAREFUL! DON'T **** IT OUT; that might injure your back; just pull out slowly and as hard as you can without hurting yourself.  I was able to get it out successfully, but I am currently stuck at removing the bell below the agitator.  Good luck!

SOURCE: Maytag washer MAV551EEWW top load with loose tub

If the tub seal lets go water will weep into the tub bearing. This will rust the basket shaft and normally wreck the tub bearing. Once the bearings starts to get worn enough it usually gets very noisy. The tub bearing is pressed onto the outer back half of the tub shell assembly. Normally need to replace the inner basket/shaft assembly  and the outer shell with the tub bearing. 
Sometimes the inner basket support will crack, this can give an clicking or banging noise as well.
 
Pictures of this job...
A sure indication was the brown junk/gookus leaking out if the rear bearing area and the belt has spewed it around in the drum that the rear bearing and seal was bad...
Picture1 - Picture2
The whole outer shell and basket come out to do this repair....what bad bearing and rusted shaft looked like...
Picture1 - Picture2 - Picture3
I had to remove the back panel. Undo the pump hose & water level hose, remove the 2 shocks, remove the motor, undo the front boot from the outer panel and remove the 2 springs to lift the whole assembly out from the back to work on it.
Picture1 ( boot pushed inside ) Help page1 - Help page2

SOURCE: My washer is out of balance when spinning.

Hi,
Your problem is probably much more than the washer being out of balance. The front load washers have shock absorbers that hold them from moving all over the place. These have a habit of breaking. Then the drum hammers and sounds like things are flying apart. Pull the bottom front off and check the shocks. Typically the rings where the pins go throuhg are where they will break. Sometimes at first they look okay and you have to grab them and move them to see that they are broken.

I hope that this will help you to solve your problem!

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Heatman101

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SOURCE: WCVH6800J1WW GE Washer error codes

need same solution, please post