Factory tow ratings apparently assume empty tow vehicle

Best way to figure out max trailer, is loaded truck from gvw. divide that mumber by HW % you need. if you have a 1000 lbs, 10% hw, gives you a max 10,000 lbs trailer. if pulling a 5W with say 25%hw, you have a whopping 4000 lbs max trailer!
Them advertisers are great at their jobs, leaving a lot of details out of the fine print!

Marty