Thanks everyone for your help, I typed the vin in at
www.realoem.com and the guy had sold me the wrong alternator. It would cost me more to chase him down as he is off island then it is worth and the local place that rebuilds alternators said they would knock 20$ off the price of rebuilding my old alternator in exchange for the incorrect one I bought. Rebuilding them is cheaper then I thought it would be and they guarantee it for a year. Thanks all.