Calipers are pretty simple. Over extending them does not ruin them, but trying to force them back in with clamps and stuff can damage them for sure. If it came apart and you tried forcing it in many things could have happened, damaged piston, damaged bore, or damaged seal. All of which are critical to the brakes properly functioning.
If the piston over extended and was sloppy loose I would say, either take it all the way apart and inspect it for damage if you forced it, or install a new/reman unit.
Edited: I didnt read the whole post. . .
If the piston over extended and was sloppy loose I would say, either take it all the way apart and inspect it for damage if you forced it, or install a new/reman unit.
Edited: I didnt read the whole post. . .