Throw out bearing question

additional to tonysrt.....
Is this a setup that has worked previously for you?
Do you know the parts are correct?
Fork tips and pivot not bent or worn down on an angle?
Is the fork all the way on the pivot correctly?
Release bearing retainer clips bent, too loose and just won't hold?
Is too much pedal travel allowing the clips to slide of the fork tip?
Cracked bearing retainer tube?