We like to mix issues that are unrelated. There are a few towing parameters to be concerned with. However they are not all directly related to taxing and road use issues.
Within the towing parameters we have ratings that pertain to safety and ratings that relate to wear and use.
Too often the responses to these threads are filled with so much mixed information that often doesn't pertain to the original question.
This thread is a good example of the mixed info phenomenon.
There is wealth of info to be gained/learned here however sometimes there is too much info from too many varying sources that the conversation becomes too diluted and varied to be beneficial.
The conversation strays off course until we are talking road use tax of commercial vs. non commercial vehicles instead of explaining why a F-250 may have a load payload rating