Thanks for the pic. That is the line that is disconnected. I know where it is, now, right in front of the 5 or 6 pin plug on the side of the tranny. It got pulled out, too, when lifting the motor for pan removal. I was wrong on the shifting, it seems to shift better with the black line unplugged. However, I now have no air, heat or blower. Don't know if that is related. You are right on checking the tranny fluid, since pulling the radiator involves pulling tranny cooling lines and you lose a lot of fluid doing that.
Thanks,
Brad