at around 100 when its trying to shift into over drive i get a slipping feeling almost. it sounds almost like the TC is whinding really really high if that can even be heard. fluid level is good. fluid is a good color, no shutter. i have no ideas. any clue? almost the same thing that happens when the speed limiter kicks in, only it makes a funny really high whind noise like i said. it was just rebuilt at the beginning of april by a respectable shop here. could it be the tune?