Might be worrying about nothing or a non issue but since the flywheel alignment pin hole is wide open wouldnt that get water / dirt in the tc / trans? I ask since i am in the process of extending my breather tubes and wondering if i need to rig up some kind of plug for that? I plan on doing some 4 wheeling to justify putting the lift on the thing if i can get it all back together and working right ha.

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It's nothing. The hole opens to the inside of the bell housing. The converter is spinning in there, and if the rear main seal decides to start leaking, it will drool out quite quickly.

You don't want to find anything leaking from there, but it won't hurt anything either.

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