Product review (4 stars): New Shocks no more walking washer
After ignoring months of my Kenmore washer walking across the floor,  an internal drain hose leak forced me to open up the washer.  I discovered the drain hose was being pinched between the drum and internal parts from the old worn shocks allowing exaggerated movement of the drum.  I replaced all four old shocks with these and now no more walking.  The shocks are very simple.  I expected some sort of internal spring, but these are only hollow tubes with some greased felt to create friction within the external plastic tube to control movement.  The old shocks lasted 12 years, so this design seems to work.