OK this is what happened. Getting ready to pull the engine for rebuild I drained the trans pan. After the rebuild hooked the trans back up and installed in the truck. I had bought a new trans pan and at this time decided to put it on. Expected the old pan to be empty when I was taking it off. It was not! Apparently when pulling and reinstalling the engine I had enough slat to I am thinking drain the torque converter. Do I run the risk of hurting the trans or tc on start up?