Rear main seal?

Hello,

The rear main crankshaft seal is designed to prevent oil leak between the engine block and the crankshaft output flange.
Overtime the heat and vibration makes the seal to fail and create a leak.

In order to replace the rear mail seal, you will have to remove the transmission.

Here is a helpful article:

https://www.2carpros.com/articles/crankshaft-main-seal-replacement-rear

I have attached the rear main seal replacement as well as the transmission procedures for your reference.

Please let me know of any questions.
Thank you.