8 3/4 spitting gear oil out of breather vent

I just checked to see if I remembered to put teflon tape on the threads. I did not. I applied teflon tape to the threads and thought that would solve the issue. I took it for another drive and still have gear oil spraying out.
As Junkyard Hero has asked the question of the rear end being over filled. I put in the recommended 4.4 pints. The rear end was empty as I had just installed the new 3rd member. The car was on 4 jack stands on level ground.
After it happened the first time I checked the level again. I don't remember if at the time it was on jack stands or on risers. I took out the drain plug and gear lube barely trickled out the hole. If it is over filled, it can't be by much. I would think that as it blew out gear oil the level would eventually get to a point where it would slow or even stop spraying out. I could be wrong. I have been wrong before. Would it make that much difference if it were on jack stands, suspension unloaded or on risers at ride height?
I ordered a new breather vent since prevailing wisdom says the current one may be sticking and building pressure.
Thank you all for your responses. I will double check fluid level and make adjustments when I get the new breather vent installed,
Teflon tape is not tread sealant and belongs in the round file at the end of the work bench.

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