Tow dolly what do I need

The truely short answer is if you want to tow 4 down easily and relatively cheaply buy a car that can be towed that way. If you already own a nice front wheel drive car (or two, I have a fusion and a focus) or if you have more than one vehicle that can tow with a dolly (I have both a MH and a van that can tow a dolly) then a tow dolly makes sense. You can tow nicely either way. And nany vehicles can be expensive to convert to 4 down. Easiet solution for most folks is to buy a vehicle that can be towed 4 down with a minimum amount of extra equipment. And legal or not, driving steep mountain passes with long 6% grades, a braking system for the toad (which can easily weigh several tons) is just plain common sense. Same for when some fool causes you to stomp on your brakes with little or no warning. You don't want several tons of dead weight pushing you foreward under adverse conditions at highway speeds. Safety doesn't come cheap but how nuch is your and your loved ones health worth?