I finally tried my long Thule roof box and it won't fit the Durango. I knew the antenna would be a problem, but since the spacing of the roof rack's cross bars isn't adjustable, I can't mount it forward enough to clear the rear gate when it opens. Bummer.

 

Do you have the oem Antenna, if you do, get yourself a sharkfin from here.

http://www.visualgarage.com/Distributor.php. Shoot them an email with your paint color and they will send you a paypal invoice, pretty decent turnaround time too.

 

A would have gotten the sharkfin if the box fit otherwise.