Got an upper spray arm and then realized (because I didn’t read the fine print, my fault) that I needed a mount and ordered it as well. Attempted repair late yesterday afternoon - mistake. Did it this am after looking at the video for installing the mount, got it done. Only broke one fingernail and took a victory lap. By the way, I am a 75 year old woman who has had no math or science or engineering experience EVER. If I can do it, anyone can.