I have a Buick Riviera supercharged where is the balance shaft located at
Knocking???? First the balance shaft is http://www.gmpartsdirect.com/catalog/frameset.cfm. Are you sure its this part? Bad Balance Shafts usually cause vibrations.
If you are unable to use the search engine I provided.. that shaft is located in a tube atop of the cam shaft. To remove its necessary to remove the engine's front plate (left side). GOOD LUCK SEMPER FI
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