I watched one of the videos made by APP. Very informative and easy to follow. The entire experience was pleasant from purchasing the part to install. The parts person was Lisa and she was extremely helpful and patient. When we pulled the door panel off these little white spacers fell out. Extremely hard to figure out how they go back in the unit. The spacers have a strange shape so it seemed like they should be easy to figure out exactly where they go. Nope. Had to call the pros back at APP. They were great. The tech sent me a video and that solved my problem. I will definitely use APP again. Great company and great customer service. My door opens and closes perfectly now. It’s all good and life is wonderful. The actual install was only about 20 minutes. Spent more time hunting info on internet about spacer install.