Why you shouldn't use tacky super gasket sealant on your transmission gasket!

I use cork and light coat of Permatex Spray-A-Gasket, no problems in 20 years. But the dealer rubber/metal are a good way to go as well. I don't know the right stuff.

NEVER and I mean NEVER use silycone on a trans gasket, I love my blue Permatex for valve covers but it has to be VERY light.