rear main seal or something else?

ok this isnt a "hot rod" but its my new daily driver. its a 93 new yorker (FWD) ok so when i got it they told me the rear main seal was gone and it was leaking oil. well it is leaking but im not sure if its the rear main. i got under it and took off this little plate that covered that area and what i can see of the rear main looks fairly clean. the oil pan gasket is like new and i dont see any grime or anything like that. and theres oil like up on the block and stuff.
what do you guys think?
thanks
steve

oh DUH
3.3 liter V6

so its not the rear main its the chain case module gasket?
and yeah i had oil pan gaskets that didnt need RTV but yeah i got tired of the leaks lol

ok i found intake gaskets but found nothing about chain case module gasket