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So I have a theory. At 58k I experienced my first trans issues. It was after a long interstate trip. The trans started acting crazy. Torque converter slip, hard shifting the whole 9 yards. Since I am GDE tuned I reflashed the trans and put it back in to fast learning mode. All is well again. My theory is that the learning software gets confused when you change driving habits. What do you guys think?
 

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Never had a problem with mine. Was stock to 46k and then tuned with Jason Hackler. Now have almost 62k on the truck. Mine smoothed out some even after Jason’s tune.

I have heard that GDE’s trans tune is questionable though. They supposedly had an update for it but that’s about all I know
 
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