Product review (4 stars): This worked fine for me but be careful.... read on.
You need to find a video on youtube to see how this is installed.  You must take the entire ice bin apart including the ice crusher part to install this.  I took a picture on my smart phone of the rod/spring unit on the bottom of the ice bucket so I would know how to put it back together.  I am glad I did.  Take your time.  Be sure to find the video and view it a couple times to understand how this works.  You must remove lots of screws etc. to actually get to where you replace this drum.  Replacing the drum is easy.  Getting to it isn't so easy.  And then you have to put it all back.  I didn't have any problems but you should be handy to attempt this.  Why only four stars?  It is over priced but you have to pay what you have to pay.