I regret to say that I had an accident with my primary tow vehicle (an '02 Super Duty Powerstroke) and it's totalled. With the economy being the way it is, rather than invest in a new diesel, I bought my wife a new gas sipper and have moved into her '05 Expedition. I miss my Powerstroke but have found that the Expy drags my 22' center-console with almost as much ease except for the stopping power. My Super-Duty had a "5 pin flat" towing connector which mated perfectly to my boat trailer and allowed the use of the trailer's power disc brakes. Unfortunately, my Expy only has a "4 pin flat" so I'm relying on the vehicle's brakes to do all the stopping. Does anyone know of a kit out there to modify the Expy to a "7 pin round" or a "5 pin flat" application?