I'm trying to find a smaller alternator pulley for my 1999 F250 SD V10. I've previously added a 250 Amp Alternator to handle the starting battery and the 2 AGM batteries I had cabled to the start bat. Turns out now the alternator is only charging 12.5 at idle but as soon as I bring it up off...

Hello, I own a 1999 f250 Sd v10 and am looking into the particulars of a transmission swap for my 5 speed (needing r/r) and replace it with a ZF650 6 speed. Hope that I can get some information regarding this swap. Thanks in advance. Anyone? ?Bill