Need some suspension help!!!!! Trailing arm??????

[Donnygtr]

so i just got an alignment today and looks like one of my bushings is super effed up, so i need to but that along with some rear control arms, but i cant seem to find the bushing anywhere online, and i try to find suspension diagrams but i get nuthing and im super stuck, according to the guy that did my alignment its called a trailing arm bushing but im not an expert, so i just need helping find the part and what it really is, any help would be appreciated