Product review (4 stars): watch the video first
Ok.  guys the wife is a good choice as a helper! I was going to shoot the machine at least twice she held me back and I was saved from buying a new machine.  I am handy but this bellow tried to break me, not as easy as everyone said but I did get it done. My model # WFW9150WW00 was hard to find on video and I tried putting on the bellow using the other videos. Very important to find the exact video for your unit. There was some tricks that the installer showed that was vital. Once I figured out how the inside of the bellow fit to the tub all was good. Another thing is take a pic of how the old one fits before you remove it would also help. I gave it 4 stars because Amazon should have made their own video instead of having someone else pay for it. Good luck