I followed the instructions on the video, removed the old mounting hub, installed the new one. After reading several comments, I also got the hub nut. As with others, my hub nut was corroded and would not screw off. I'm glad I ordered it, as I had to chisel the old one off in pieces (this is what took me the most time). The removal and replacement didn't take long, but the chiseling did. Then I cleaned up the parts - a lot of gunk builds up over the years. Also, parts came faster than anticipated and were cheaper than Amazon.