I've had mine since December. So far it only has 1400 miles ,and was built prior to 11-17.As yet no tranny issues other than one incident of nuetral delay while accelerating in traffic. Overall Im happy with the milage and performance, so at this point I'll pass on the flash till I see some feedback on it. Im kinda hoping it aint broke so I dont have to fix it. The truck will be getting a workout next month, I'll have a better idea if theres an issue or not. Hopefully this fix works for those dealing with problems. Let us know.