My tranny has a 'shutter' between 40 - 45 or between DRIVE and OVERDRIVE, other than that there aren't any problems with the shifting. If I drive over 45 it's not an issue but if I'm in traffic I have to keep it under 40.
I had the tranny serviced (flushed, filled and a new pan) at the Chrysler dealership and asked to have the TCM(?) flashed with software updates (they said none were available) any suggestions or thoughts?