2013 VW Touareg Bluemotion 150kw Stage 2 tune, TAG towbar, Titan Suspension coilovers
Ah ok. For dual axle that makes sense. My van is single axle.If you have a dual axle van as the towball drops the weight on the tow ball will also reduce somewhat as it puts more load on the van front axle creating a countering torque and reducing the ball weight. Raise the tow ball with stiffer springs and the ball weight will tend to go up. How big the effect depends on the van and its suspension design.