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  1. W

    How to not tune a 4l60

    I tried that in HP tuners and it was basically unreadable, all the lines just overlapped and I couldn't figure out how to turn off the gears I wasn't modifying. Don't know why I didn't think to do that in excell though. That's the aim, pic attached.
  2. W

    How to not tune a 4l60

    So, I got tired of the 4l60e's downshift hesitancy in my '04 Suburban and decided to do something about it. Story time! I was struggling to keep up with my brother in Jeep of all things on a recent road trip. This was because the cruise control would get lost the in slop between where it stops...
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