How to replace the rear main crankshaft seal?

Yep, you will need to start by raising the car in the air safely on jack stands because the transmission will need to be removed. Then I would drain the coolant and disconnect the battery, you will need some specialty tools and equipment which I have included. If you get stuck let me know and upload an image of the problem so I can help walk you through it. Check out the images (below). Let us know if you need anything else.