[JFP in PA]

Originally Posted by Raven 911

The link below is a interesting thread that shows the engine build dates most likely to have the small IMS bearing and the period were the larger bearings started to be used .........

'06 S owners - what's your engine number and production date? - Rennlist Discussion Forums

Only one problem with this: In 2004, Porsche moved from the PST II to the networked PIWIS system, and stopped printing any service manuals because they were now included in the PIWIS system.

Add in the fact that Porsche has never admitted that the IMS bearing could be extracted with the shaft still in the engine, and only sold replacements as a fully assembled shaft, and this becomes even more questionable.