Tally TransAm

iTrader: (17)

i was installing the hals and when i was removing the springs off the old front shocks i came across a problem. the metal bushing that is build into the bottom of the rubber spring top thing (see arrow) ripped off and stuck on the shock so now im fucked

what is this piece callled, does it have a part number, and where can i get one (new or used) ASAP