Just noticed an odd smell when I was driving my Rx7 this evening, jacked it up and noticed that there is a seal leak coming from just below where the shifter **** is but on the undercarriage of the car, just above one of my catalytic converters. Explaining the burning smell. I am just wondering what this part is, what fluid, and any repair tips. Any help is appreciated.
It is an 84' 12A engine

 

Moved this thread to where you're more apt to get help.