How far are you towing it? Depending on the bed, it will weigh 5-9,000 pounds. Flat towing it, you have no brakes on it so, it is more than likely not legal to flat tow it! Also, how are the tires on it? I would not want to tow either of the ones I bought with the tires that were on them!
If you do, I agree with Paul, at least unhook the driveline from the rear and tie it up out of the way (better to take it all the way out though).