4L80e drops out of drive to D3

[MidLifer]

Originally Posted by MidLifer

That is exactly what the tech at Lokar said. Put both the trans and shifter into fully-detented Drive, then adjust the rod so that the bolts are 90 degrees. Gonna give that a try.
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Just to report back and close this thread out - I followed Lokar's recommendations and adjusted the rod with both the trans and the shifter in D. Problem disappeared. Truck stays in Drive no matter how hard I get on it.