The trans pan gasket? Torque the bolts in a criss-cross pattern, snugging them up evenly. Re-use the OEM gasket if possible: it has a steel insert which prevents you from over-torquing and crushing the gasket.
Yes, I am gonna be changing all of my cars filter's soon and was trying to get all the specs on the gaskets I'll be dealing with. My oil pan gasket is actually leaking, I was just gonna drop that pan when I change the oil.