Bell housing situation
To fix this leak you will have to remove your driveshaft, transfer case/support crossmember, and remove your clutch pedal assembly, then unbolt the transmission and remove it and the clutch assembly, then remove the flywheel and you should be able to see the back of the crank and your rear main seal.
Take a screw and drill it into the seal, then use the "fork" of a hammer to pry it out carefully. The seal itself isnt super expensive, maybe $30 from your local Oreillys or Autozone. Tap the seal into place with a mallet gently, and evenly all the way around, then take a 4" PVC DWV cleanout adapter with the plug, and put it over the seal, and use a mallet to tap it all the way in.
Now fair warning, this whole job is easier said than done. It can be pretty frusterating. If you dont have the proper tools it would be in your best interest to take it to a shop and have them do it for you. Most shops will charge a little over $1000 for the labor.
Hope this helps : )



