Have been looking for a proper method for lifting the coach to safely work under it with enough space to get around comfy to do what ever needs worked on. Found this system.
Looks interesting, 2 units maybe 4 units, more to learn.
Gray USA, manufacturer of hydraulic jacks and lifting equipment (http://www.grayusa.com/wheel_lift.asp)
Take a look, might be interesting.
Dave M
I have seen these in use at the local Allison shop in Jacksonville. They had a large dump truck or something way up in the air. Looked very rugged.
Mark