yesterday i was driving from work and i noticed some weir play/clunking when the car was swaying from side to side a bit over snow and during turns. today it got worse, so i got under the car and with the help of my brother i pinpointed the thing that makes the noise. it is a metal bushing that connects that bar that goes along the rear axle. any idea what that bar is called?
its not the sway bar, thit is that thick square one.
and here is the bushing. any1 knows what its called or what the pn is?
here are the pix


