This is the adjustable drop down hitch bar.
Confirming the right hight to install the WDH.
Tightening up the bolts.
I was fortunate because the Blue Ox rep was visiting the trailer shop at the time. He had to call his engineering office to determine if there were any issues when installing the WDH on a Fleetwood Evolution.
The key to installing was to make sure the chains were long enough so the bars would be under the A frame.
Preparing to bolt up everything...
Last step... tightening up all the bolts.