Grrrrr!!! Stupid Trans Pan

NO!
I check drain plugs when I assemble new parts.:bootysha::D


Seriously though, I always use a little silicone on drain plug threads since I hate leaks so much.
It's worth it to me to have to clean it up and redo it when I take the plug out.

Now the pan itself is a different story, as it's not that easy to get one to seal and NEVER drip or get damp with fluid.
And the pockets in the trans surface where the gasket contacts make it a pain also.

I know most people(and most shops) wont use anything but cork on the older style transmissions, but I hate em cause the always get soaked or end up getting crushed from tightening up because it started to get wet again.
Same with cork valve cover gaskets (I can't stand em) on my own car.

I always use the black composite rubber/fiber gaskets with a film of RTV on both sides and they NEVER EVER leak.

Anyway, the point is that aftermarket pans are sometimes thinner steel and it makes them even harder to seal.