just swapped out 4l60e for an 80e but I have been told that every time I et off the throttle the converter comes out of lock up. Could this be true. Also what is a segment swap? Everyone says that sux. Is there something else that I can do. Last issue that I'm having is when I Manuel shift to 1 and try to up shift thru each gear the tranny just hits the limiter and doesn't go up to next gear. Please help. Thanks