Rear right suspension - PINGING over bumps?




i havent had my rear suspension checked for a couple years now and know my sway bar needs replacing per my last dealer visit 2 years ago.
question - when looking under the rear right wheel there is a specific part that in this picture sits in front of the spring (see pic) that seems to be loose and out of place.... anyone know what that is??? I put my hand on it tonight and its got a bit of play in in and i'm guessing thats whats causing the noise as i dont remember ever seeing that part so visible???








rear left sway bar / stabilizer bar looking like ****...




