Oof. So between your truck and mine, it's a great example of what I've been trying to explain.
My truck has 1750 pounds of payload, but is rated to tow 8550 pounds.
Your truck has 1090 pounds of payload, but is rated to tow 10990 pounds.
If we attach an 8000 pound trailer, at 13% tongue weight, we use 1050 pounds of payload. I weigh 200 pounds, wife at 200 pounds, no cargo, but 50 pounds for WDH.
So both trucks, with that trailer and passengers inside, are using 1050 + 450 = 1500 pounds of payload. Again, no cargo in truck, just driver + passenger + WDH.
Your truck is exceeding its payload by 410 pounds!
My truck still has 250 pounds left for cargo.
So, whose truck can actually pull that trailer? Not yours, even though it's rated to tow more with the 3.92
Not saying this specifically at you, but in general: Please don't ignore the payload factor!!