I actually have the part that broke off. When I pulled the air cleaner apart for the first time, the bracket was broken just before the aft mount to the air cleaner itself. The rubber mount was intact, though, and that was holding it to the air cleaner itself. The rubber mount on the right side forward was busted, so that one wasn't doing anything either. The one on the left side was normal.

I switched the rubber on the aft one with the one on the right one, so two of them are holding currently...and I kept the third piece, so maybe I could JB-Weld it back on or something. However, looking at Fastlane's price (don't remember the exact number now, but it was less than $30), I may just get the new bracket and also replace all 3 mounts just to be sure, and leave it at that.