Your tranny will not have a drain plug in the converter.
Follow the 4R100 flush article in the SDD Technical WIKI.;tu
Valvoline Max life, Mobil 1, are real good. If you use Red Line. Make sure it is Mercon or Mercon V rated.
To make the tranny shift real nice,check this place out. :sweet
PCS - Powertrain Control Solutions - Home
You will not need to use a factory PCM for an auto with this set up.
Low line pressure or solenoid issues will cause that. If the OD off light is flashing, pull the codes.
Sometimes low line pressure will not set any codes. Check the fluid level and condition. ;tu
That is the dust seal. It keeps the crap out of the tube. Well, supposed to keep crap out of the tube. Most of the time they are broken and flopping around the axle. :eek:
Remove the valve covers, check for sludge. There are drain galleys in the head.
I would expect to see that on a poorly maintained engine. :eek: If the oil is changed on a normal basis, it should be clean. :D
Wont hurt to look.;tu