Try this link it is Porsche 986 parts catalogue.
http://www.porsche.com/all/media/pdf/originalparts/usa/986_USA_KATALOG.pdf
Google porsche boxster 986 workshop manual. There's a free version floating around out there, its for the earlier 986 not the 03-04.
What year is yours?
Did you have to assemble the Bearing Carrier?