How do i change the water pump on a 2004 chevy trailblazer?

buy new water pump, take out old one, put in new one. Note - do it in this orderHow do i change the water pump on a 2004 chevy trailblazer?Buy another one first. Take the belt off, take the bolts out, Clean around the seal area well, put new seal on, tighten bolts evenly, put belt back on, top off antifreeze.