how do i find the tongue weight of a trailer?
After you arrive, first get the overall trailer weight by disconnecting the trailer and resting the entire rig, wheels and tongue jack on the scale. Next, find the tongue weight by hitching up the trailer and leaving only its tires on the scale. The difference between the two measurements is the tongue weight. You want roughly 10 percent of the Â­trailer's weight on the tongue. Shift the cargo fore and aft until you get the correct weight distribution.