Product review (5 stars): Easy DYI for ANYONE-Saves a BUNCH of Money!
So, tell me this...DO you want to spend $120+ (local price) from a repair person to come and fix your non-agitating washer, or spend so much less and do it your self???

I purchased one of these the last time the washer stopped agitating, BUT, not through Amazon.  I was frustrated and could not fix the machine, and ended up having to call my repair guy. Come to find out, I was missing a piece, a VITAL piece, in that kit.  So, fast-forward 2-ish years, and here I am again, with a washer with an agitator that is not agitating.  Ugh.  So, I googled the model # to verify the part I needed and came to Amazon.  This kit looked great, and the price was perfect.  I also ordered (separately) the agitator bolt, which doesn't come  in any of the kits (why?  Not really sure).
You will also need a socket with an extension to reach the bolt...just FYI.

So, remembering what the repair guy said, the white retainer (?) isn't needed with my machine.  So, putting that aside, I put the dogs in the cam, added the black spacer bearing, and bolted the top half of the agitator back on.  All of 10 minutes (including a good scrubbing of the agitator...it was a little dirty looking), and the job was completed.  I didn't realize how badly the agitator was functioning these last couple months.  Now it's awesome.