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Thread: Lowering shift RPM - 4t40e

  1. #1
    Tuner in Training
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    Lowering shift RPM - 4t40e

    On a 4t40e, to lower the RPM at which it shifts at WOT, do you need to change both the speed and RPM shift points under WOT, or would work to only change the RPM?

  2. #2
    Tuner in Training -MD- HHR's Avatar
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    Matt is this you, and you need to change both in conjunction.

  3. #3
    Tuner in Training
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    Yep

  4. #4
    Tuner in Training -MD- HHR's Avatar
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    Matt what are you doing the 29th? We need to get together to look at each others trans tunes.