When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
What do you mean exactly? Trailers have tongue weights, not trucks. Are you wondering what the capacity is for your receiver hitch? Tongue weight is the amount of force pushing down (typically the weight on the ball of a receiver hitch). Pin weight is the amount of weight on the 5th wheel receiver hitch, etc.
Weight distribution hitches distribute tongue weight differently than standard type hitches as well.
Towing capacity is something different entirely and is the difference of the total combined weight rating less the weight of the tow vehicle as currently configured.