The big 32 mm nut? You can make a tool very easily with some bolts and some inch flat metal to replicate the tool or if that’s not for you, if you have a adjustable spanner on the the nut and hit the spanner handle on the floor with the clutch Assembly in your hands will crack the nut loose, just make sure you compress the clutch down with your feet while you loosen it on the last thread or it will fly off under the spring tension
