If the 2 holes on each side no longer have a purpose, fashion, & fasten a small bracket, to bolt to, through the two small holes, in the case. J B Weld the bracket to plastic if necessary. <!-- s:headscratch: --><img src="{SMILIES_PATH}/scratch_one-s_head.gif" alt=":headscratch:" title="head scratch" /><!-- s:headscratch: -->