I have a whirlpool ultimate care 2 super capacity plus washing machine that always seems to go out of balance on spin cycle. It used to just happen when you ran a really big load but seems to do it all the time now. Machine will bang, bang bang bang and shake while spinning , you stop it and move clothes around several times and will finally spin without banging. Even when it does not bang while spinning like when doing a small load, the machine will vibrate and move several feet away from wall when done. It is sitting on a cement floor .
Most of the time this is caused by the suspension spring on the machine base page # 6(Model LSQ8243HQ0)