I let a friend borrow my TJ and it came back leaking radiator fluid. Looks like it blew the bearing on the water pump. Every video or discussion I see on removing the fan shows a large nut that unscrews the fan. From what I see, that appears to be missing on mine. Maybe that’s how it broke to begin with? I just see a shaft going into the pulley and four bolts holding the pulley onto the water pump. Any ideas on how to get this thing off of there without that nut? The whole fan is rocking back and forth which leads me to believe that bearing is bad. Trying to include image.