ouch, I would like to see some more pictures before I give it a death sentence but I have never seen just the front half of these superchargers for sale before, you will most likely need to get a new sc and either mix n match or just use the entire used one. the good news is that they are not that expensive as there seems to be more supply than demand for them. see what the guy that sold you the pulley has to say and let us know, if you end up fixing it yourself we can get you everything you will need.