In the front of the radiator is a part that looks amazingly like the transmission cooler shown here (
http://www.handa-accessories.com/odyssey/odytc.jpg) but I don't really have any way to confirm that is, in-fact, what it is. It doesn't have the factory hitch or anything but I wonder if this may have been installed....I'm not sure if anyone has any experience with this or not but figured it was worth asking, suppose I can take it to the shop and see. Also, thanks to all the advice I've gotten here I ordered a 1k lb WDH today, found a great deal on a reese. I'm excited about getting our new (to us) 2004 Honda Odyssey ready for towing our 2720sl.