Tow dolly what do I need

PapPappy wrote:
With a tow dolly, you will still need brakes, and a light package (either tied into the vehicle, or magnetic type that are placed on the trunk or inside window).

Not true on either point. Perhaps in some states but not all. In some states the lights on the dolly are sufficient as are no brakes if the weight is within a threshold. Not saying it's not a bad idea to have brakes on the dolly or extra lights for that matter, but they are not required.

This is a confusing question. You talk about a dolly, which requires no installation, and then talk about installation of $3500 which seems high for a 4 down or dolly set up.

Dolly is simple, hooks to a ball on your receiver, drive the front wheels on the dolly, strap it and go.

4 down tow bars require plates installed to your towed vehicle as well as the hardware (tow bars) light and brake hookups, battery disconnects if required etc.

4 down is defnitely easier once it's set up, both can be comparable in cost, Dolly is more versatile in that you can use just about any vehicle, but it's an extra axle to care for as well as a place to put it. Tow bars are specific to that vehicle.

Either way $3500 is robbery.