Perform a search on water pump replacement and you will find more info than you would need. With the info found on this site I replaced my pump and knew exactly what to expect. While you are at it make sure you are prepared to replace the belt tensioner, mine was shot and its good to take care of it all at once. Also make sure you replace the short hose between the pump and block. Spending a little more money and time now will make things easier in the long run.