1) 3 clarifications on the assembly: 1. the rack adjuster lever with the "claw"- the claw does not fit into any slots. It just sits up there. It is the knobs on each side of the lever section that fit into the 1/2 moon cutouts of the housing. 2. for the wheel clips in the last step- In order to get them to snap into place, I had to adjust the height of the wheel assembly by releasing the rack adjuster lever. 3. look closely at the rack end-keeper clips. There is a tiny raised lever in the center that when pressed-lifts the lock clasp on the other side. In the video, he just pulls them off and pushes them back on. I guess his are newer and of a more forgiving rubber and mine are a stiffer more brittle plastic. I had to gently and patiently coax mine off and on while confirming it was securely on. Ensure the clasp clicks in place. Watching him do the second one helped the best because of the close-up shot.
2) Watch the entire video on a laptop first. Do not try to do the procedure while watching it for the first time on a phone. I went out and bought a star screwdriver before I learned that they included a nifty adapter. I could not get the tiny video picture to enlarge. The icon that I expected to make full-screen, just tried to send to my TV.
3) This part was cheaper on the Brand Name site, but I'm glad I paid more for this part from this company because I appreciate their dedication to customer service by making this video.
4) I was mad that I had to pay for the entire assembly when I only needed a wheel. Fact: I found a second broken wheel that I did not know about. The old plastic parts were so brittle that 2 of them broke when I removed them and would not have been reuseable.