1996 Toyota Rav4 scraping and clunking noise

You drove with grinding brakes for a month? Return to the same shop to give the mechanic the chance to check his work. There are things we need to do to prevent noises and there are things that can be done to accidentally cause noises. All rotors must be replaced or machined. If an old one was reused but not machined, there are going to be rust ridges that formed outside where the old linings rode. New linings are never exactly the same and they can ride on that rust until it wears down. Typically that doesn't take more than a few miles but it still wouldn't occur if the rotors had been machined.

There are anti-rattle springs and other hardware that can become mispositioned and cause noises. Things like that will be corrected at no additional charge to you if it's related to the recent service.