Okay, I have 3 throw out bearings, one is shot, other 2 seem to be okay ? what does a new throw out feel like ? 1 of them is an LT4 besides the square instead of the round shaft is there any difference in LT4 & LT1. Both seem to move freely without too much play compared to the one I just took out.

 

not much to worry about with the release bearing as long as it is newish. they don't go bad very fast. not really much of a difference.