How do you remove and install the power steering pump pulley on a 97 jeep grand Cherokee V8 with it still in the car?

To get your old pulley off you will need to go to autzone/advance/whatever auto store and get a new pulley, and a pulley removal kit. You rent it for like $40 but they give you your $ back when you return it. Go home and take your drivebelt off, then follow the instructions in the puller removal kit to remove the pulley. It's kind of hard to explain the pieces in it, but it's not hard to figure out yourself. Helps to have two people though. Once you get the old pulley off there is another piece in the kit that is for installing a new pulley, and its about as easy as turning a wrench. The only problem is that the fan and fan shroud are a PITA to work around, but it can be done without removing either of those.