[JFP in PA]

Originally Posted by Smallblock454

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Hello FoxRvrBox,

there are some infos about the serial numbers and IMSB versions on this site: Pelican Technical Article: Boxster Intermediate Shaft Bearing Replacement and Upgrade (IMS) - 986 Boxster (1997-04) - 987 Boxster (2005-06)

Caution: the description of how to change an ISMB is outdated. If you have an AT engine, nobody can tell what ISMB is used.

Regards, Markus

Markus, that article was wrong when it was published, and has not gotten better with age. It has simply been proven incorrect too many times to be of value.

The more accurate approach is what I answered to another poster.