rbpru wrote:
Maybe I am wrong, but I though the purpose of a properly adjusted WD hitch was to make the truck and trailer level.
I adjust the links so the TT is level or just a bit nose down.
True, the purpose is to transfer weight to the front of the truck, but I have found that air bags provide a more stable up/down ride on 'wavy' road surfaces.
My measurement correction is at the front fender of the truck through the center of the wheel to the ground. It should be the same after hitching as before hitching once the WD bars are installed.