IIRC the bearing caps like to distort, therefore it's usually thought that lots of machine work needs to be done. Hence the desire to buy one for $300 or so instead.

For replacements:
1996+ Bonneville SSEi
1996+ Olds LSS SC
1996+ Park Ave Ultra
1996+ Riviera with SC
1997-2003 GTP
1997-2004 Regal GS
2004+ Impala with SC
2004+ Monte with SC
2004-2008 GP with SC (Need TB adapter)

Lots of cars to choose from.