Roper top load washer shakes violently...HELP.

I just got a used roper top load washing machine about 5 yrs old or more. The tub seems to sag to one side. I checked the springs and they are all there. The machine washes fine but spins violently in the spin cycle. I am pretty handy but am not an appliance pro. Why is it spinning out of control? How do I fix it? Any help is appreciated. thanks.

Hexster (A hands-on learner)

Remove the outer cover and inspect the skate plate under the tub, look for misalignment from the move. Just move the tub up and down to position it right.

Thanks, Richappy.
I tried that and it stays put until I run the spin cycle. Then it shakes uncontrollably. From the top I can move it around and it seems to “click” in to place but that technique goes out the window when running. Other than the springs, is there anything else holding it centered/upright? Any other suggestions?

Thanks.
Hexster

You might be missing the brown,plastic slides on top of the skateboard, should be 3 of them.
Look at the front of the washer, if the tub is tilting one way, your skateboard is still not sitting right.

Yes, one of those skid plates were missing. Thanks. I have one quick question… Is the skate plate supposed to be attached to something or is it supposed to be loose and wedged into place? thanks again.

Supposed to be loose.