Hi there, I am a single mother and my income is my car! so please HELP! I have a 2006 chevy cobalt coupe 2.2L I4 DOHC (hope thats all the info you need) and im trying to buy an alternator online, but worried it will be the wrong one even though it says "fits chevy cobalt" blah blah blah, ya know. So, please help!!! Im looking for refurbished or used or new, anything but under a 100..... please and thank you! Just tell me how to get a specific alternator that WILL indeed fit my specific cobalt.