Towing T-Bird

Greetings, Is it possible to tow a 93 T-Bird with an 87 E-150 Van cross country on a tow dolly without any adverse affects? U-Haul says I can`t do it because of the weight of the T-Bird. I realize that the driveline on the T-Bird would have to be disconnected but I`m pretty sure the van would handle towing the car. If I did do this, what would be the consequences? Any insights? Thanks.