I recently bought a used 2003, passenger van, with the 5.4 engine to tow my boat with. It has 52,000 on it. The boat and trailer weighs about 6500, which is at or within the towing capacity, according to the owners manual. I also removed the two bench seats, since I am single, and don't need them. That removed a couple hundred pounds. I read the chapter on towing carefully, but I can't see anywhere, if I should tow in or out of overdrive. My common sense tells me to tow out of overdrive. Any suggestions. The van has a heavy duty hitch, and the tow package, and electric brakes, and was used for towing something. I bought it from a dealer.