Cooling Fan and Shroud Replacement
Here is a website which has the directions written differently, but still correctly.
J41240 has been updated and now is J46406. Both will work, but J46406 is a little longer making more torque when removing the nut.
Also, many times autoparts stores will have free rental programs (ie Autozone). I would assume they would have the fan clutch removal tools, but maybe under their own part number.
Short of finding the right tool for the job, it is sometimes possible to take an airhammer with punch end and hammer on the side of the nut breaking it free. This DOES damage the nut and occassionly to the point of not being able to be reused, but works when in a pinch.