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6 speed

  1. wagon transmission to full six speed?

    General Tech
    I am a noob to most of this and just want some questions answered. I am wondering if the 5+SL transmission from the 4WD Wagon could be rebuilt with something like the five gears from an Si tranny then a longer 6th gear for fuel economy on highyway. I don't think the gears could actually be taken...
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