Originally Posted by TDroma
Does my interpretation seem correct?
12200 minus 6800 = 5400
So your max trailer weight with WD hitch is 6,800 only if your wet and loaded pickup weighs only 5400 pounds. But it weighs a lot more than that, so no, you cannot tow a trailer that weighs 6,800 without being overloaded.
All manufacturer's tow ratings are overstated that way. To determine your real-world tow rating, load the truck with you and Sweetheart and the munchkins and Fido and Kitty and the cooler full of cool and the floor jack and your toolbox full of tools that you might need on the road. Go to a truckstop that has a CAT scale and fill up with gas. Then weigh the wet and loaded pickup.
Subtract the wet and loaded weight of the pickup from 12,200 and that is your real-world tow rating. But that might be high too. The tow rating assumes that GCWR is your limiter, and ignores GVWR. But you should never exceed either GCWR or GVWR, and on many tow vehicles GVWR is the limiter. So subtract the weight of the wet and loaded truck from the GVWR of the truck, and the answer is the max hitch weight you can have without being overloaded. Divide that max hitch weight by 12 percent, and the answer is the max weight of any tag trailer you can probably tow without being overloaded over the GVWR of the tow vehicle. Divide that max hitch weight by 18 percent and that will give you the max weight of any fifth wheel or gooseneck trailer you can probably tow without being overloaded over the GVWR of the tow vehicle.
With those calculations, your actual tow rating will the the lowest trailer weight you calculated, based on either GCWR or GVWR, which ever results in the lowest trailer weight.
Example: Your wet and loaded pickup weighs 6,200 pounds and has a GVWR of 7,000 pounds. So if GCWR is your limiter, then 6,000 pounds is the max trailer weight you can tow without busting the GCWR of the TV. 800 pounds hitch weight means you could tow up to 6,667 pounds of trailer weight without busting the GVWR of the TV. Since 6,000 is less than 6,667, then 6,000 is the max trailer weight you can tow without being overloaded.