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overdrive

  1. Overdrive indecision... Am I just driving wrong?

    4R70W Transmissions
    I've read a lot here about turning off the overdrive in town to prevent frequent shifting. How frequent is normal? If I'm going 35 up a hill (for example), and it's just the right grade, is it ever normal for the transmission to immediately switch back and forth between 3rd and 4th gears-pretty...
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