i recently had new upper and lower a-arms and springs installed on my 1980 spider. just today, i started hearing an intermittent rattling. it happened sometimes over stutter-y bumps, but usually over larger ones. my girlfriend and i were out shopping when we noticed it, so we slowly took surface streets home and stayed off of the interstate.
when i got home, i jacked up first the rear (where i thought the sound was coming from) and then the front, before finding the source. the spot welds of the piece pictured had all failed, and this little guy was just floating around, on top of the right upper a-arm.
is this structurally vital? if so, how completely unconscionable was it to attach it with a few crappy spot welds? should i absolutely not drive the car until i get the whole piece replaced? how can i test the integrity of the other side, short of just beating up from below with a hammer?
(btw, sorry, i did not realize on my phone that it was focusing on the ground and not on the piece.)
any advice appreciated. thank you for your time.