autopartswarehouse has an inner tie rods for most cobalt and are offered at discount prices. My brother bought last 3 months an inner tie rods and still working good.
insurance adjusters will only take account for visually damaged parts. i've noticed on these cars, only experienced heavy body guys will know how to diagnose and fix front end damage, especially from lateral impact. aluminum acts strange and will bend but look visually sound. there's a lot of weak suspension components even including the cradle/subframe that will wrinkle from light impacts. hell you could warp the thing with a small hammer! could have just been a bad body shop, bad adjuster, bad situation!The part was defective how? That would fall to your insurance company usually (road hazard)