That's a question that none of us can answer. How the manufacturers arrive at ratings seem to be a closely guarded secret.
RobWNY wrote:
you get in an accident, a smart attorney could sue you for being over the stated GCWR
I don't understand how torque and HP plays a roll in an accident.
Now you're really opening a can of worms. There are many discussions on here about whether the GCWR and or towing rating are legal ratings that can be admitted in a court case. Ultimately nobody on here can answer that. Well it's possible that someone on here can answer these questions, to date they have been mute on the subject.