Here is where the CRITCAL attention to detail lies with these transmissions. The adjustment here will either burn the clutches up or make the transmission not work properly. The plunger must be fully engaged at WOT. No exceptions. Then when the throttle is released, the measurement from the base of the boss the plunger slides into to the end of the plunger should be .82”-.86”. If it’s too short, then you need to adjust the throttle arm to have a longer pivot from the center of the throttle mechanism. If it’s too long, shorten the pivot distance. See here http://www.extremeautomatics.com/assets/pdf/2004R_Transmission_Install.pdf