GM Service Manual Online
For 1990-2009 cars only

Cause

Correction

Propeller shaft rev limiter/snubber contacting the driveline tube - manual transmission applications only

A rev limiter/snubber that is contacting the driveline tube may create a moaning type noise and/or vibration that is felt through the shift lever. Slight noise and vibration is to be considered normal during an overspeed condition but should not be present when the overspeed condition has ceased.

Replace components, as required.