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Eaton Shift Knob

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Another big-rig influence, this Eaton shift knob replaces the regular tranny knob and contains the air fittings and buttons needed to shift the Mountain Gear. One button operates Direct (1:1) and Overdrive; the other selects the Underdrives. You can shift while the 4x4 is moving (but slowly for Underdrives, especially if the transfer case is in low range too). It takes a bit of practice to rock the accelerator and hit the button in sync for smooth shifts, but the air shift is fast and engagement is sure.