I try to do a quick search on forum but couldnt find someone who was doing it through shift hole .. just filler hole ...So i decided to change my tranny oil since who knows when its last been done and 2nd feels rough on cold shifts... so i was told the best way to do it is pour fluid through shifter hole is easier than filler plug thats on top of tranny hard to get to ... so i was wondering do u just unplug the drain plug and let it drain and then pour it through hole? sounds easy enough. but my real question is how much do you pour in? i heard it was 2.4 quarts so do i gotta measure it to the precise amount or do i gotta pour it to a certain level or something?? thanks.