My 1-ton dually 4WD diesel pickup needs to be towed to the dealership... The tow truck driver showed up with a regular (not flat bed) two truck and plans on towing it with the front hooked up... ...
I saw a Ford Dually 6.0l getting pulled with a tow strap up the main road by a newer Ford Dually this week... So anything is possible.. (and no this wasn't a 6.0 bashing moment) ;)