I had many people ask me where I got the 5th wheel tailgate for my truck, and I never had an answer for them becuase I got it with the truck and there was no name on it. Well, I have an answer!
http://www.hitchesonline.com/5wheel_wiring.htm

Halfway down the page you will find the breeze through 5th wheel tailgates, and for a good price, AND a listing for 1st gen Dodges!

 

I have often thought about turning my current tail gate into a 5th wheel style since it's already bent in the middle from my gooseneck.
Probably will never do it though.