Anybody running one of these. Since I installed my electric fans, at idle, with lights, AC, or defrost, on, when the fans kick on, the voltage drops low. I did the big 3 ,or in my case the big 5, ( extra grounds) and that does very good at say 1000 RPMs plus, but at idle the voltage drops low. Around 10 on the OE gauge. So I noticed this morning that just putting the truck in P, the volts came up from about 10, to about 11.5 ish soy thoughts, a small pulley should do the trick. So I was wondering who has experience with an overdrive pulley.