I'm towing this with my F150. It's #7000 GVWR and has a dry weight figure too, but it's not dry anymore and I figure it weighs every bit of it's GVWR the way I load it for travel.. It's a Rockwood 2511 "Mini Lite" (ha, ha) it ain't "Lite" at all!
I do fine with it, but would not want to go any heavier..
Do all the math you want, but in the end, it's how you load it and what it weighs after all you load or do not load in it.
Good luck!
Mitch