Deep 904 transmission pan?

do not use a chrome pan- ever - chrome does not transmit/ radiate heat very well at all. especially a polished pan
rough aluminum painted with a thin flat black is best flat black steel pan is ok but no thick black gloss paint coating
if you do have chrome Hylomar helps
and do Not use grade 8 bolts
they have no stretch at recommended torque and if you torque them to grade 8 specs you will warp your steel pan and squeeze out the gasket
no silicone ever