Listen UP... you are having to ask too many basic questions on an important subject...
You need to find someone to show you how to do this the first time... in addition to reading all you can .... We don't want your wife posting on here angry that the things we did not know to tell you about caused you or someone else to die...
Brakes are very serious stuff.... they must be perfect... GET HELP the first time.... at the very least.
Greg