replacing a water pump on a chrysler 3.5 liter V6 is not hard to do but there's one big thing, you have to remove the timing belt just to get to it. If you have never done timing belts, I suggest that you not tackle it, because if you do not properly line up the crankshaft and camshafts, it won't start or worse yet, you could run into piston to valve contact. But if you are willing to do it, go to a local auto part store and look at the service manual for Chrysler LH body style cars between 93-97.