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    Allison 5sp: DIY Rebuild Help

    I need some help. My tranny had limped 5 - 6 times. The first few times while downshifting from 5 - 4 on the highway tring to pass. The last 1 or 2 were while accelerating down the down ramp merging on to the highway. I would have loved to have one of the reputable Allison builders...