I degreased the trans a few times & once I see ATF on my garage floor, I jacked up the car & used paper towels to feel around (above the gasket) to see if the leak is from above....BUT still no luck.

Your toilet paper idea is very good, I'll give that a try. I'll degrease the trans once again & stuff toilet up above the gasket & just let the car sit over night...just to confirm if it's from above or the leak is actually from the gasket.