Where did this piece fall off my 2012 Tacoma?

Found this on the garage floor. Checked my drive shafts and doesn't look like it fell
off one of those. It's 2 1/8 inches long x 3/4 inch wide with a single spot weld in the middle.
Any ideas appreciated.

 

Oooooh that's your middle chuck hitch..not good.

 

Brake pad J/k Cant say that I have ever seen a piece like that.

Weld doesnt look like it broke off, maybe a its scrap from the factory.

 

Should have posted a pic of the back. You can see where a little rust got under the piece and popped the spot weld.

 

It is a weight off one of your rear brake drums.

 

this

scuff it clean to bare metal and jbweld it back on, or you'll have balance issues

 

Thanks guys. Appreciate the help. Off to get some JBweld.