http://engnbldr.com/toyota_ala_carte.htm get parts from here or toyota. Pull the pan completely off, and clean it out. Pull oil pump off, because they need to be primed when drained completely. Remove the pickup also when you pull the pan, and clean it out good. Dont want to leave crap in ur pan, or have your pickup clogged, or have a dry oil pump that gonna take a minute to pull oil back to ur top end.
edit. yes you can get away with not pulling pan, or oil pump, but that is NOT the correct way to do it, or how I have ever done someones. Do a job right, and well, is wat I was always told.