The man we bought the washer from said he was "too lazy" to fix it. I watched the video on the appliancepartspros.com part page. When the part came in, the repair took about a minute, maybe two. I pulled off the old agitator (literally, it snaps right off), used a 7/16 wrench to take off the agitator coupler (it didn't need to be changed, but I figured I would change it while I was there), screwed on the new agitator coupler, lined up the new agitator, and pushed it down until I snapped on (you'll feel it click into place). The video is really helpful.