1997 Chevy Blazer water leak @ water pump seep hole

Hi, I am having a terrible time trying to remove the fan clutch. I have tried all kinds of tools. I have the wrenches which were a joke with slipping etc. I was able to lock on good with large screw driver wedge and monkey wrench. Could nut budge it either way. I am wondering if the process is correct. It does have a bolt form that I can lock onto sits between the pulley and fan balde. It is the fan clutch. Please let me know what I can do to remove this to replce water pump. Not sure it is the pump but it leaks through a water pump seep holeon top of water pump. I also could not budge the belt tensioner. I am using the inside bolt to lift up versus the mounting bolt. Can those freeze or no longer work?
Any help is appreciated. I have no problem donating when given the correct procedure/process.
Wayne