I paid $19, and got a 660 gatorback belt to go with the 3.4, Running smoothly, although my alternator is making a squeaking sound now. FML.
ps....i just re-used the little black thing I have circeled on the other page, went to the dealership and they had NO idea what it was, it didnt even show up on their enigne picture (therefore, no part #) Pretty sure I didn't even have to put it back on anyways, I did just to be "safe"