I just did my water pump the other day before heading out on a trip. We went to leave and heard a noise, the water pump bearing was going and I had promised the wife we would take the Jeep. 1 Hour and 45 bucks later including antifreeze and silicone yielded me a brand new (not rebuilt) lifetime warranty pump. I could have done it faster but I had to stop and eat hahaha!
Here is the results: