I've been searching for hours trying to find a clean cut answer to this question... What is the STOCK torque converter for a 2004 5.4L with 4R70W trans? I need to buy a new converter for this trans and it looks like I have two options. FM69 (1900-2200 Stall Speed) and FM69L (1600-1800 Stall Speed). Does anyone know which one would be closest to stock? Thanks in advance!