how to replace rear main seal

The easiest way to change that seal, unfortunately, is to put the car up on jack stands and remove the tranny. It's a bit of a job, as I realized when I did it two years ago. But you can take care of alot of different needs when you do it: clutch replacement and check under the stick shift for worn parts, rear seal, driveshaft, and exhaust components. You will be removing all of those items, so think of it as a job that's well worth the effort