Hello, Does anyone know how to determine what model top-loading Roper model one has? Mine is marked (on the front control panel) "Roper" (on left) "Heavy Duty Extra Large Capacity" (on right). It is an older top loading washer that I'm having trouble w/ the agitator w/. The heavier the load, the more it slips (won't advance in agitation process). I want to check the belts, etc but don't know how to get the back off. I have more pics but could only upload one here. There is a part no. on the back of the control panel (3359601). There's also a no. stamped into the back panel (3357978). But there is no label, etc w/ the model no. of the washer. Thank you in advance to anyone who is able to offer assistance.