Is the B-Pillar behind the side window?
If so then this should cover me. I get windnoise at highway speed from the lower aft part of the side windows.
Windnoise Around B-Pillar (Add Sealer)
1999-2001 Chevrolet Corvette (Hardtop)
Condition: Some owners may comment on windnoise around the B-pillar.
Cause: The windnoise may be caused by a void in the sealer behind the B-pillar weatherstrip retainer.
Correction: Remove the weatherstrip retainer and the B-pillar exterior molding. Seal the void with GM RTV Silicone Rubber Sealant-Black, P/N 12345739 (in Canada, use P/N 10953541).
Parts Information: Part Number 12345739, Description GM RTV Silicone Rubber Sealant-Black
Parts are currently available from GMSPO