[N2TRUX]

Yeah, I knew this would get the "different opinions" flowing. Josh, your way may have worked for your application, but it's not always the optimum way to go. If you are using a light duty truck to tow on the typical tandem axle trailer, the trailer has very little ability to absorb bumps in the road.

Using your approach, the load becomes dead weight and the trailer suspension has to absorb "all" of the load. Using my theory, the trailer suspension only absorbs a portion of the load, and the rear suspension of the towed vehicle absorbs the rest.

Just like you, I have towed vehicles across the country using this method. I learned this it from a buddy that built cars for a living then delivered them to customers across the country.

You can't really use what commercial car haulers do as an example. They have an adjustable suspension to compensate for the additional weight. Your typical tandem axle trailer does not.

I have no doubt that your way of doing it works, because I have tried it that way. I also know how well leaving the rear suspension free works.