In my opinion, I would make sure that the tow dolly has electric brakes on it and that they are working. I would also install a break away switch that would come into play should the tow dolly come undone. The Taurus is going to stop should it come off of the tow dolly as you will have it in park while on the dolly. I have a tow dolly and it has electric brakes on it and a break away switch. I tow a Ford Focus (going to convert the Focus to 4 down after vacation is over) on it and a Ford Freestyle. I appreciate the electric brake's help on stops so it does not push the MH or try to pass it.
Dave and Karen -- '02 Ultimate Advantage 36 C, 350 HP Cummins, Allison 3060 Tranny
'07 Ford Escort, Brake Master 4160, '13 Ford Edge, InvisiBrake