So I'm ready to replace the upper engine stabilizer mount on a 98 S70. The current mount is almost non existant, so removing it should be a breeze. I've searched replacement mounts (will most likely purchase from IPD) and they appear tobe much, much easier to install. My fear is the vibration. Some folks say that the poly replacement bushings will transfer vibration to the steering wheel while the OEM replacements do not. Is there any truth to this? Looking for recommendations ....

 

Yes there is truth in it.

 

Originally, I was thinking the vibration was caused by unbalanced tires. I even went to the point of purchasing two tires for the front. A local mechanic who works on Volvos told me the wheels (american racing - I bought the car used with these on them) are total junk and were causing the vibration.
While removing the ABS control unit to send away for repair, I noticed the bushing was totally shot. I'm thinking this is most likely where my vibration is coming from.
I'd hate to put in an after market part only for the vibration to continue. Some posts suggest (if replacing with aftermarket poly material) the bushing should be rotated 15 degrees towards the front of the car to reduce any vibration that may occur.
I don't have the necessary equipment to press in the new bushing and am hoping to do this repair in my driveway. In your professional opinion, is the vibration that comes with the poly part that much noticable as compared to the OEM?