Ok, sounds like your on to a solution. The passenger side for my mounts was in fair condition with no signs of cracking, the driver side is shot. So would it be wise to swap the OEM rubber mount from the passenger side to driver side and use the poly on the passenger side, or does it not make a difference in which side it goes on? I wouldn't mind running one side poly and the other stock as long as it takes care of the irritating vibration!!