Hi,
If it is over full, there is one of two ways. First, (and chances are this isn't what you want to do) is remove the transmission pan. That will drain approximately 4 quarts out and then you will need to replace the gasket and refill.
Or, you can actually get a vacuum pump to draw fluid out through the dipstick. I've seen people use a manual pump as well as one that is actuated by air pressure.
Let me know if that helps or if you have other questions.
Joe
Monday, March 9th, 2020 AT 7:43 PM