Do stiffer motor mounts cause more vibration? I put new motor mounts that are slightly stiffer than the stock ones and it seems like there is more vibration in the cabin especially as the rpms climb. Normal?

 

which brand of motor mounts did you buy?

 

I believe the stock ones are shore 40 and solid ones are ....solid. I picked up a pair of shore 60's. My stock one's were shot. I could easily move them side to side without any resistance. I think my vibration is coming from the tranny mount though, not from the stiffer moto mounts.

 

from time to time I will get a bit of interior buzz or vibration (usually in the door or visors) -- it is infrequent and happens when at idle at a stop; can't notice it when moving or with rpm increase

 

http://wevo.com/Products/ChassisProd...gineMounts.htm

 

At $198.75 each for the WEVO mounts ($397.50 for the set -- note that two are needed), I personally would go (as I did) with the factory RS mounts from Suncoast for $399.95 (http://www.suncoastparts.com/product...996performance) and pay the extra $2.45, though the WEVO write-up is a useful description of the underlying theory.