Our top loading GE WJRE5550K2WW was making horriblly loud noises on spin cycle. Re-balancing the loads made no difference. So I opened the front expecting to see broken tub guide straps or tub shocks. Nothing broken. Simply, the tub had jumped over the flange that is used for the shipping bar that secures the tub during transit from the factory. Solution: lift the tub sligtly and guide it over that flange (or bracket) back to the center where it belongs. If this happens again, I'm bending those suckers over. They're not needed ever again.
Just an FYI to anyone that might benefit from our experience. Enjoy.