[Jake Raby]

In 2000 there are no accurate directives that will clearly identify which bearing is fitted. 2000 and 2001 both require a visual inspection to quantify which bearing is fitted.. Porsche kept the records and did a poor job of it based on our direct experience.

The IMS flange was changed from a single O ring style to a triple lipped style seal due to leakage issues. That said, the fact that it was changed tells me that you have an early 2000 MY and that would indicate a dual row IMSB is fitted.

I have never seen a single row bearing fitted with the early O ring style flange. After 399 retrofit procedures, including the very first one, well, we still continue to break new ground.