Craig,
Sorry to maybe disagree with you but if you have the later 3.2 with electronic transmision control rather than the vacum super select then you risk damaging the transmision if you don't use 4WD for towing.
There should be a label advising you of this in the cabin and a similar warning in the hand book.
If you hit the search button you will find a lot of earlier posts covering this topic and if you are still not sure talk to the Mitsubishi Service dept. who will be able to give you guidance on the subject relevant to your particular model.
I would hate to see you wreck your car but apparently it is a real posibility with the later type transmission if you ignore the manufactures advice!