Product review (5 stars): Easy, very inexpensive repair of Agitator...done by my wife!
You can spend several hundred dollars on a new washer.  You can spend over a hundred dollars on a repair call.  Or you can order this repair kit and fix it yourself in about 10 or 15 minutes.  If your Whirlpool Agitator seems to be slipping, this is your solution.

BTW my wife ordered and installed this after watching a video on You Tube!  When I went to the big box store, they told me they don't sell this repair kit because they want people to buy a new washer instead of fixing the old one.  I thanked him profusely for his honesty, and shared that with my wife.  It motivated her to take action herself.  The best part...one less thing on my "honey do" list. ;-)