The instructions for the mounts were super easy. Here is my set up and what I used.
You just have to measure from the top of the windshield and place the mount on the truck and drill holes for the rivets. I used blue tap to mark my position. The holes to the left of the blue tape is from my last mounts, which used metal sheet screws. Terrible idea because few of them broke off from the high wind and off roading. This mount is rock solid from riveting it to the door frame.
Next I just riveted the mounts to the door frame. The instructions say you can use a pop riveter hand gun but I have a air riveter.
Here is a close up of the bar