I found two more duplicate guides.
https://www.ifixit.com/Guide/Power+Mac+G4+Quicksilver+Hard+Drive+Replacement/2079
https://www.ifixit.com/Guide/Power+Mac+G4+Quicksilver+Hard+Drive+Replacement/1864
I found two more duplicate guides.
https://www.ifixit.com/Guide/Power+Mac+G4+Quicksilver+Hard+Drive+Replacement/2079
https://www.ifixit.com/Guide/Power+Mac+G4+Quicksilver+Hard+Drive+Replacement/1864