If you need truck capacities to determine the appropriateness of an attachment with your equipment and your desired load you can use the Truck Moment formula or try the calculator at http://www.lifttruckcapacitycalculator.com. I feel you will get a more complete picture from the later method, as they take into their calculations variables that are difficult to find. In addition to forklift truck capacity calculations, you can contact Andy Shipp, PE at Professional Forklift Engineering Services, LLC 843-532-6469 to get a new data plate for your forklift including your new attachment.