Product review (5 stars): Just what the doctor ordered
Easy to install in my Whirlpool washer.  Solved the problem of the upper agitator not pushing the clothes to the bottom of the washer tub.  Check out YouTube for videos of how to install.  Improved performance of washer.  I will add that the top of the agitator was very tough to remove.  I ended up snapping the little restraining tabs to get the pieces apart.  That didn't impact the ability to install the new agitator dogs and get the washer working again.