Removing the 30mm transmission output flange/yoke nut correctly.

[dmorgan]

I am about to remove the 30mm nut from the transmission output flange/yoke on my 1994 Mercedes E320 wagon. I am using a electric impact tool while under the Mercedes undercarriage body. Before I do this, I want to make sure what direction correctly to remove the nut. Is the removing the nut going clockwise or counterclockwise? Comments, advice/feedback is greatly appreciated.