Checked it further during my lunch...the clip is all of the way in the connector, and it looks like all of the others (same size). The alternator has 4 pins also. I checked voltage of both wires coming out of the alternator, and the brown wire has 12 volts, while the wire to the PCM has 0 volts...is that correct, or should the PCM be seeing the alternator output? I'm not sure what the wire to the PCM should have on it, my sevice manual is for a 99. 0 volts could either mean nothing or ground. BTW, my factory alternator is a 105 amp...I wonder if Jerry2500 has a 130 amp since the truck is a 2500.