I don't see why not, idk which car they're running them on, one of the posts above said that the tc has different axles or whatever than the rest of the models. So they'll probably only work on the car the cobalt guys are using. I didnt read the entire cobalt forum so I don't know the whole gist.Question about wheel bearing hubs: Can you use Grand Am wheel bearing hubs like this guy? http://www.chevycobaltforum.com/threads/my-hub-conversion.2662/
I believe if you send your hubs to them, they will redrill them to 114.3 / 4.5 BC...think it is like $25 per hub...You can purchase new 5x114.3 (redrilled) hubs from DFG at $100 each. Nobody ever confirmed the Grand Am wheel bearings would work.