Running KW Day Cabs on grain hopper bottoms. On the Farm. Trucks get stuck in fields or county road ditches. Truck has factory tow bar to stick into (2) factory holes in front bumper which lead to holes in frame rails. This factory piece has 1" diameter hole and has a width of 1 3/4'' . No standard screw pin shackles have those dimensions nor are even remotely close to rated capacity to pull out 80K lbs. Any help appreciated on where to look to buy such specialized and rated screw pin shackles.