Yes the drum bouncing around. All wiring looks in tact and connected.
I know what you mean about the parts numbers. The door lock part number for example – when you put in the machine model it brings up 3 different part numbers in total. The one that arrived – on the packaging the part number was one of them, slightly different to the part number on the unit inside the packaging but this was actually the same number (and same brand) as the one I was removing.