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overdrive

  1. 1994-1997 Power Stroke Technical Info
    Howdy, all. I'm planning on putting an "overdrive" pulley on my plain-Jane alt -- changing from the factory 69mm to a 49mm. According to my math, this should bring my idle alt shaft RPM up to a more useful level, and stop lights dimming from AC kickon and whatnot (especially once I install my...
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