Most of the weight is in the front of the truck, of course. In a quick stop situation, the weight in the trailer wants to keep going, and will press against the tow vehicle. If the tow vehicle is light in the rear, the trailer, if the majority of the tongue weight is not forward of the axle, will take advantage any way it can, in this case it will sometimes lift the rear of the tow vehicle somewhat. This lessens the rear tires' grip on the road surface. If you are really having a bad day, the trailer will then push the rear of the tow vehicle to one side or the other, causing a jackknife situation. Envision a '67 Ford 1/2 ton with a full service body like a contact maintainance vehicle, pulling an M101 (properly proportioned load) with a load of firebrick in it. Little old lady jams on the brakes for a squirrel. Driver of tow vehicle hits brakes, trailer jackknifes. With the utility body, this truck has significantly more rear axle weight than a regular pickup. Still jackknifed. Towing driver reacted well. Had just enough room to go around LOL, let off the brakes, jammed on the gas, and straightened out the trailer. Went to find a restroom to "compose himself." LOL oblivious of these events. Best to have some load in the tow vehicle. You will do fine-you have good equipment. What I am looking for is some kind of a kit that will allow me to tow an M105 behind my crew cab dually 1 ton. Anybody heard of such a device? Pagan