Mystery part identification

So I was wacking away at my LBJs with a hammer trying to get them apart and a part fell from somewhere around the front diff area. Does anyone know what it goes to?

 

Hmm. I can’t grab a picture but I believe that bracket goes on the brake booster somewhere by the master.

 

Taco booster but same idea. You’ll have a 2 bolt tho not a 4 bolt master

 

That's the arm that holds the one-way vacuum valve onto the booster.

 

I am not sure how you all knew that of the top of your heads but thank you! Saved me a lot of worrying lol