Product review (5 stars): but a good time to check and clean all parts of the ...
Did the trick. Two of the three were completely missing as they were worn completely away which was the cause of the excessive vibration in my washer. A bit time consuming to access the location, but a good time to check and clean all parts of the washing machine. especially the outer plastic tub and the exterior of the inner tub that tend to build up soap scum.