kenmoor elite he3

sounds like its out of balence when in spin cycle. it bangs at about 3/4 spin speed and quits at full speed,at slow down same thing. this is loaded and empty. while troubleshooting i removed back and top checked suspenshion springs,4 shocks, all seem good. also removed belt and turned drum with cordless drill, same effect. drive pully and bearing are tight with no grinding.are threr any alighnment blocks,bumpers,ect. i am stumped? thanks,vic