5 years ago I was at penn state, for engineering of all things. I did things similar to this but everything is eluding me at the moment. My situation: I have a car that Ive attached a class 1 trailer hitch. Its rated at 2000lbs and i don't intend on towing more than 1000 lbs. For a peace of mind, id like to have an extra safety barier. Id like to run some steel cable from the hitch itself to the frame of the car (the hitch is bolted to the frame). The cable should prevent the trailer from taking off in an even the trailer hitch fails. Consider the maximum speed of 75. I know deceleration/acceleration is important here, numbers im not sure if I can reliably provide.