So...just replaced my lower front control arms on my lr3 (thanks for all the tips here). All went fine, but when I was air hammering and sawing through the frozen/corroded rear bushing bolt this piece fell to the floor. It looks to protect some tubing , but I couldn't find the location. Any help would be appreciated.

 

That's a US quarter dollar.

 

Lol...

 

Never seen that part before. Could be half of a clamshell wire bundle protection elbow, as a wild guess.