Does simply selecting 4L80E under the transmission tab convert a 4L60E tune, or is a segment swap required?
Here is what the documentation says. Each point links to its source; tables and names vary by computer, operating system and tuning software.
- 0411, 1181; LM7, LQ4, LQ9; 1999-2007: A proper 4L60E-to-4L80E segment swap moves both the transmission segment and the transmission-diagnostics segment from the donor file. (HP Tuners)
More in transmission tuning, or build a checklist for your swap with the tune checklist tool.
Confidence: medium — sources disagree or are limited; check the sources below.
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