drsteve wrote:
the WDH will transfer/redistribute to the TT axles which is typically in the 15% to 25% of the dead tongue wt.
Incorrect--TW has no bearing. It could be 1000 lb, or it could be zero. The amount transferred depends solely on the spring bars. Your TW scale, btw, would show an increased load on the hitch ball, rather than a reduced load.
Read the entire sticky. It's all there.
Yes, it is all there, but you are not understanding what is being said. Bareny explained it a bit, as have others.
Consider if you have zero tongue weight...no weight is being applied...thus nothing is distributed. Zero = Zero.
Where you are getting crossed up is "tongue weight" and the load actually being applied to the hitch or vehicles rear axle with the WDH connected.
Point also being made about payload and capacity is that the WDH does transfer some weight off the vehicle entirely, the amount that is transferred to the trailer.
In my experience, I have seen as little as 100lbs move the to the trailer and as much as 300lbs, with trailer tongue weights between 500 and 1000lbs.
Should you use this transfer of weight in your calculations? That's up to the driver. But realize the scale is all that matters, as long as you use it and retain the document (printed weight results). It is in fact, a legal document.
So if the scale says you are within all specified capacities (Axle weights, Gross Vehicle weight, and Gross Combined Weight)...you have proof in print that you are legit.
That payload sticker on your door jam is meaningless once you hit the scale, as its derived from the numbers you measure on a scale.