Anyone know the exact diameter of the factory roof rails on the '04 D2? I'm considering a custom fabrication on a light-bar using the x-eng lights and a crossbar between the factory roof-rails, but I need to know their exact dimensions.

If no one knows or can point me in the right direction then I'll get the measurements off of my truck later, but I thought this might be faster since I can't go out and measure it right now.

Cheers!