The difference in this case is that the end user is using a Linde Hydrostatic fork lift to tow with. The hydrostatic transmission has dynamic braking which will stop the load. In towing it is not as much to have the torque to pull the load but to have the braking power to stop the load. You can tow with a Torque converter forklift if you have enough braking power but I doubt the MFG. will stand behind the product in this application.