Leaky 904

So got my engine installed and filled up the trans/converter and wouldn't you know it.... not only does it leave its mark on the road with rubber it also leaves its mark on the drive with trans fluid. At first I thought it was the front trans seal but it favored the pass side. I got it up on ramps and it's dripping hatefully from that corner gasket. I tried to snug it up a bit but still leaking. The gasket I used before was cork. Is there another better alternative? I'm still using the steel pan.
Could be the dip stick tube leaking and running down to the pan.
Ditch the steel pan for a cast aluminum pan.

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My steel pan was leaking, I never could figure out why?