tongue weight

Remember tongue weight is at static,(not moving,)conditions at fully loaded on level pavement. The weight of the trailer is to be with proper distribution 60 % in front of the axle,(so the tail does not wag),with the hitch hight no more than 4 inches off level, vehicle to trailer. So after that set up is done, the tongue weight can be made to be what ever you need by lifting the vehicle suspension up or down but not beyond the 4 inch up or down limit. The design limits can not be violated, and the tire load and inflation have to be correct for load too for both vehicle and trailer. So set it up with all aboard and weigh it if you want the exact figure blocking all the wheels then jacking the tongue of the trailer on a scale until it just starts to lift off ball. Adjusting the vehicle suspension up or down to get the desired tongue weight. That may require a lower ball as you can only drop to minimum air in air lift suspension. If no air lift suspension is present, ball hight must do all the adjustment. In dynamic,( driving down the road), the tongue weight constantly changes and even lifts the vehicle, so if vehicle has weak suspension the ride will be bad. All design weights stated on trailer and vehicle are for new, (or within original factory design), specifications and do not apply to worn below design suspension and or tires. Remember to relock the trailer to ball.