Product review (5 stars): Easy Fix
I used a 3/8 drive ratchet, a 6 extension, a 7/16 socket (11mm will work too) & about 10 minutes time to remove the old dogs and replace them with these new ones. The machine is working great. Dont overload your machine & keep the water level high enough to allow the clothes to move freely and you shouldnt have to replace these near as often. If you do, this is way less expensive than calling a repair man.