My dodge ram v6 is leaking oil from the shaft tha comes out of the water pump. There is no oil in the water. Is there a seal that can be raplaced by removing only the fan or is this going to be a total nightmare??

In my opinion:

I would just buy a new or rebuilt pump and replace it and get your core return on you old pump.

As for just replacing the seal, you will have to remove the pump anyway!