1600 was just an example and thanks for clarifying thats to high to down split. but in that case, 1600 rpms, foot off throttle, hit the button down, then hit the throttle right after split? is that right? if so, what should the split shift sound like? under normal driving conditions while loaded, on/off highway for example, what rpms should split shifts be made in general..up and down? glad i found this site. a lot off good info on here. i did read about mackr1989’s problems and my issue seems to be the way im shifting, not a problem with the transmission. but i did notice that when i ran the