Call me clueless, but as the title says, I found these nubs following a front tire and brake pads replacement.
Never felt or saw anything drop.
Looked all over, even removed one caliper (again) to see if they fit anywhere.
First, I thought perhaps they plug the back side of the caliper mount bolt hole, but they didn't seem to jam in there well. Not much space left once the bolt is fully tightened. Besides, I found 5, not just 4. Even read through the Shoptalk procedures (again) to see if there were any mention of these, but nope. Didn't do anything else, just the front wheel and pads.


Bueller?