I have just completed this job on my "spare" tranny. Remove the rear nut (may be 30mm deep socket or the "special" socket). There was a pic posted earlier this week and it showed how one individual on here made the special socket - pretty easy. Anyway the nut turns counterclockwise as you are facing the rear of the tranny. Now the output shaft just pulls straight off - you may need to encourage it with a rubber dead blow hammer. Remove/replace the seal. Make sure you lube it up properly. Re-install the ouput shaft and bolt everything back together. Pretty straight forward job. I do not remember what to torque the nut to.

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Jim