I replaced the water pump on my `98 S.E. yesterday. Not leaking at all now. I took the old water pump apart to see if the impeller shaft is loose like I heard it would be. Still feels tight wiith no side to side movement. Has a slight squeek when you turn the impeller. There was evedence of antifreeze and oil leaking out of weephole. Is it possible my pump is still good, and I just needed a new "O" ring on the water pump? Has anyone here replaced their water pump on a 1500? What did your impeller shaft feel like?