I think my 727 is fried. Now I'm at a crossroads...

Thanks, I just didn’t know if the fluid need to be under pressure to see if there was an issue or not.

I’m part way through prepping the engine/trans/K member for removal, and I’ve already drained the transmission fluid. I suppose I could fill it again, but that stuff ain’t cheap. Wouldn’t I have seen a blockage when I had the transmission apart?