I followed the instructional video regarding how to remove the door boot gasket. Once I had the machine apart, I was able to notice that the suspension spring was busted. It is very possible that if you are able to determine the suspension spring is busted, you could most probably replace without taking the machine apart - except for the top cover.
I must warn you that the washing machine drum is heavy and will require some assistance to pick it up high enough to get a new spring on it.