Towing with a Chevy Venture

I am not ignorant of towing facts or weight stickers. The poster asked what my payload was not my payload capacity, that is why I asked what he meant. We will only be traveling with two people, and all but the two front seats will be removed from the van. Without doing this the payload capacity is 1600 lbs. so its around 1900 lbs. with the heavy seats taken out. We will be well under the Vans payload capacity. The Chevy towing package includes air leveling rear suspension and a tranny cooler. I will be installing a heavy duty tranny cooler bigger than the one Chevy uses. The K-Z Sportsmen Classic brochure advertises those model trailer as designed to be towed by Mini-Vans and we would be getting the smallest model so I think we will be okay. I doubt I will be able to tow at 65 mph safely but I don't want to drive that fast towing a trailer anyway and I plan to stay off the Interstate highways. I do worry about the transmission though as that seems to be a weak point on this vehicle, the owners manual recommends not trailering in OD so I won't be. I do appreciate everyone's opinion and advice.