I am working on my hitch install now. I went out in the shop and took it apart, it has many components, the slider rails, the air bags, and the Blue Ox Bed Saver. With my new taller truck; 2" taller, I have to lower the hitch, also, the entire assembly is just too heavy to do the adjusting required to mount it in the truck.
I installed the electric hoist in the shop, it has really been a back saver, I had to beef up the support by tying in the ceiling joists with the rafters. I recommend the electric hammer tool, it's a joy to use.
Some pictures;