Abstract: A vibration damping assembly for use with an automotive vehicle is provided. The assembly includes a bracket having a C-shaped receptacle, a component such as an air cleaner housing having an integrally-formed, grommet-holding cylindrical post extending therefrom attached to the bracket, and a spool-shaped isolator mounting grommet attached to the post. The post includes a proximal end integrally attached to the component and a distal end. The distal end includes at least one integrally-formed retention barb and preferably includes two spaced-apart and integrally-formed barbs. The post includes an attachment end attached to the component and an unattached end opposite the attachment end. The barbs are formed on the unattached end. Each barb includes an upper edge extending beyond the unattached end of the post. Each barb includes a ramped, grommet-passing surface. The spool-shaped isolator mounting grommet may be formed from materials such as TPO, TPE, AEM, ECO, and EPDM.