truck seem to run great and feels great with all up shifts 1-2,2-3,3-4, and 4th lock up.
and when you're in any gear and floor it for the downshift to a lower gear to accelerate feels like it goes to neutral and RPM just rises.
called Sonnax to ask there techs if they had any idea what would cause this mechanically, and they said they didn't have any ideas and thought it might be a programming problem.
the only other symptom i have is sometimes is that reverse sometimes has delayed engagement /
please let me know if you have any ideas
will try and get a line pressure driving and shifting in the next few days