[Dmitry at Pelican Parts]

I wasn't able to find an article on the procedure to remove the auto tranny, but I was able to find a guide on the IMS bearing replacement. I hope you find the below link helpful!

Pelican Technical Article: Boxster Intermediate Shaft Bearing Replacement and Upgrade (IMS) - 986 Boxster (1997-04) - 987 Boxster (2005-06)