So I checked out the bottom of the generator and tightening all of the screws to help with the vibrating of the coach when the Genny turns off. This star-bit bolt has a large rubber grommet with a washer. Looks to be used to absorb some of the vibration given the grommet. There are two of these bolts, and they're screwed all of the way in. But the grommet isn't even absorbing anything and isn't touching anything. It just spins. What part is this? I looked through the underfloor kit parts, I looked through the generator parts manual, but I can't find it. I worry the folks I purchased the RV from put this part in here and it doesn't belong.