It never ends. Leaky selector shaft seal.

Selector shaft seal on my A500 is leaking, which is strange since I replaced it when I built this trans, and it's only been up and running for a little over a week. Guess it's possible I damaged the seal when putting the valve body in or just got a crappy seal. Anyone ever changed one without dropping the trans, or at least the pan and valve body?
This sucks, had a 2x3 puddle under the car this morning. Trans is soaked all around the selector shaft.

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