I purchases the Curt class V. It is rated to 2400lbs tongue weight and does not cost much more. That way, I can tow anything I may need.
I had a RV store install the wiring for my Prodigy. I had taken the panel off, and installed mine at my right hand side next to the engine cover. They needed to run the wire from battery all the way back. I decided it was a good investment, since I did not have hours to do myself.
I would suggest a set of new shocks. I am close to putting some on my van, to take out the bounce when not towing and using as a tour bus.
I have seen the Express with bucket seats in the 2nd and 3rd row in the Van Pool vehicles. Not sure if they just go into the factory openings or not. I would love to replace the benches with something higher.
The 3.42 axle does a great job when not towing. I have gotten as high as 21 mpg (driving at speeds under 65 mph).
As for the open differential, I had to leave my trailer once when trying to back up on wet soft grass. It was what I was expecting, but tried anyway.
