**Includes upper spring pad, must be replaced when installing new shock absorbers** The rear shock mount is the main component that anchors the rear shock to the chassis. Over thousands of miles of driving it is not uncommon for the rubber to weaken and tear. Failure to replace shock mounts when installing new shock absorbers often times results in a future failure of the shock mounts which then requires dis-assembly and re-assembly of the shock absorber assembly. It is more labor and time effective to replace these mounts when installing new shocks for this reason.