after i bought my 94 mustang GT, the tranny was shifting fine. i decided to do a tranny flush because it was sitting for more then 4 years but when i did a tranny flush all of a sudden the tranny wouldnt shift. it would take off but when the rpm goes really high it wouldnt shift. i was thinking since i did the flush without changing the filter on the tranny i could have a plugged filter. does anyone know would could have happened? thanks for the help guys.