I watched the You tube video before I started to install them, it was useful. However, I did not have to cut any material off the rear pieces like the video. I started fairly low in the front of the rear wheel well but not below the original holes. Worked the material very close and tight to the lip and molded the rear section just a hair below what the original was. I think it looks a lot better than if I would have cut it. Not a twenty minute job, more like forty-five, but who's counting... The only complaint would be the super cheap screws, clean and use your originals. Forty plus years old and still better than those new foreign screws.