“I believe you can do it with a traditional torque converter. I've done it. It's not smart.
Push by your buddy, no. Push with another vehicle, yes - but as the other Steve M suggests you'll need the high side of 25-35mph to maybe make this happen.
Without the tranny fluid pump driven, you won't get TC proper fill, BUT there's usually enough residual fluid left in the TC to attempt this unwise stunt. It;s the difference between a really good transmission fluid service and the ones we all actually did... How many of us oldtimers removed the shield (back when you could) and rotated the TC, pulled the plug, and drained the converter? No flame here; I'm as guilty as any.”
