Please do not buy this article! Air transport has been in use since 1949, but don't let that put you off! I purchased a Firestone system for my 2011 Ford F-250 and it took about 2 hours to install. It was easy and worked great! After all the Firestone and Airlift reviews I thought I would give Airlift a try. Huge mistake! I have a 2019 F-350 and missing parts to start with. I had to go to the hardware store and they forgot to send the parts. I have a good business and had to modify a lot of parts for my truck. It is now on day 2 and I was able to install it. You don't have to listen to my comments, but you'll find out if you have an airlift system soon enough! My only hope is that it works!