Quote:
Originally Posted by porschedavid
As far as i know the Front prop viscous coupling:gets its oil from front diff
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911uk.com - Porsche Forum : View topic - The AWD system's Viscous Clutch - replacement.
This thread has the best cutaway pic of the prop shaft Viscous coupling and front Diff. that I've seen, though the title of the pic says its from a 2007 Turbo.
The thread and the shown Orings make it look like the Viscous coupler is sealed, and non serviceable as a internal piece to the prop shaft housing.
Neither the Porsche website Katalog.pdf, nor pelican list a serviceable fluid for the Viscous coupling.
Thanks Richard.