Not sure about what to call what, but here goes. A short while ago, this rubber fitting (that helps keep the prop that holds the hood on my Sienna up, secure against the frame of the car) came loose. Now the prop will still hold the hood up--it will fit into the small hole in the chassis, where it is supposed to fit--but I'd prefer the additional security of having the rubber fitting, sitting nice and tight, instead of being loose. I couldn't find this on the rockauto website, and I know better than to email them. So I'm asking you: (1) what is this called, and more to the point, (2) should I just glue this in, or does the rubber simply fit tightly around both sides of the hole in the metal—in that case, should I just buy a new one and push it in tightly?