Quote:
Originally Posted by 1bcooper
99 Chv C1500, 4L60E transmission with cooler/towing, etc. I have blown three transmisisons.
*Can you replace the 4L60E with the heavier 4L80E?
Will the computer still work?
I am towing a 6000# Airstream.
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The wiring harness for the 4L80E is different than the 4L60E harness. Plus as was already posted the PCM will need to be reflashed.