Originally Posted by scbwr
I'm adding a lightweight cargo carrier to the rear of my travel trailer by having a receiver welded on to the frame. So, the carrier will weigh 28 lbs. (unloaded) and I wouldn't carry more than 200 lbs. of cargo on it. Is there a mathematical formula that can be used to determine how this will reduce the tongue weight? My trailer, fully loaded for travel is 6500 lbs. Will adding 230 lbs. in back of the bumper reduce the tongue weight to cause a problem or require tweaking the WD hitch? Thanks for any help you can provide!!
Too many variables. The length from the hitch to trailer wheels, the length from the carrier to the trailer wheels, and the distance between the axles all need to be known to get any kind of formula.
Just know that adding 200# to the back does not automatically reduce tongue weight by 200#. But, it does add 200# whose momentum will add to any sway present already. This is why toy hauler bumper pulls have axles set farther back than equal sized travel trailers.