I just noticed yesterday while admiring my gordgee grounding gear that my z tube is either scratched or cracked.

Could be scratched when the mechanic was helping me install the grounding wires.

Cracked - is this possible?

 

Push in the plastic. If it moves inward, its cracked otherwise its just a scratch.

I have the same kind of mark on my ztube and its just a scratch on mine...

 

i actually pushed hard with my finger and handle part of my screwdriver and it doesnt move in. so its a scratch

any chance these things could crack at all? the plastic is uber hard