Perhaps it was designed with the 7.5" or 7.625" (Monte SS) in mind?
I would check out
http://www.hrpartsandstuff.com/produ...nd/swaybar.htm or
http://umiperformance.com/catalog/in...roducts_id=734
Paul at HRPartsNStuff is a GN owner and supports the Buick community. Many Buick racers and owners use his stuff.