A Grapple increases the chances of doing it. Curl the bucket forward, grab an object that's grounded or heavier than your FEL should handle, reverse the tractor. Now the resistance is trying to open the Grapple. Pull hard enough and you bend the ram from compression force.
Be real careful about putting yourself in this situation. A Grapple puts tremendous stresses on an FEL that it's not designed to handle.
If you have a good hardware or AG supply store near you might check with them. They can take the dimensions of your cylinder and order a replacement. Probably at considerably less cost than going thru Kubota