Maytag Frontload Won't stay in one place!

[JCCoffee]

Model Number: EPIC Z
Brand: Maytag
Age: 1-5 years

Acquired a hand me down front load machine, that literally dances away from the wall while on the spin cycle. It is fine if there are no items in the wash, but when a load is added is shakes like crazy. What parts am I looking to replace? We did make sure that it was leveled, so I know its not that. Any help would be appreciated.

[Doc Ryan]

I will need the model number from the tag on the washing machine. If you open the door of the washer, the tag is located around the opening of the washer. What kind of floor is the washer set on?