25 Before torque converter installation, add at least one quart of Dexron III or Mercon V fluid to the torque converter. Both types are AOD compatible. This ensures a good pump prime and plenty of lubrication on start-up. We stress the importance of proper torque converter seating, which is very tricky on an AOD. Feel for the converter to seat twice on two shafts and the pump stator. If you can fit your hand between the converter and pump, it is not seated. If it's not seated, you will damage the pump, converter, and input shafts.