I am thinking of starting a new thread and calling it "Understanding payload and GVWR limits".
Tom,
If I saw a topic with this title, I would assume it pertained to why a tow vehicle is limited to carrying a certain amount. However, from your writeup, I assume you are talking about the contribution of tongue weight, hitch head weight, and weight distribution to load on the TV.
Rather than going through all the percentage calculations, it might suffice to say that, for estimatimg purposes, one can assume that a properly installed WD system can decrease the vertical load on the receiver by an amount equal to 1/3 of the hitch weight. However, one should always measure the actual weights for comparison with the TV and TT ratings.
Ron
