My 2000 s2000 seems to be vibrating A LOT when I accelerate the car. It happens usually from 40mph-50mph and 70mph-80mph. It only vibrates when I accelerate, but when I put it in neutral or let off the gas vibration stops. I was doing a little bit of research and read that:

The original drive shafts of the S2000 is design at the stock ride height so when the car is lowered with coil springs or coil-over suspension then the drive shafts will be stretched about 10mm each side. This will occur a lot of stress to the drive shaft. As a result, the drive shaft will wear down in a very short period of time. J's Racing offer this spacer which the drive shaft can be 10mm closer to the outer side of the shaft so the shaft will not be stretched. This also allows the drive shafts to have longer life.

Supposedly that is causing my vibration. My drive shaft is balanced and is in good condition. It has nothing to do with my tires or alignment. I put the car up on my friends lift took the wheels off and drove it and the vibration still occurs.

Do you guys think putting on drive shaft spacers will eliminate the vibration? If so whats a good place to buy those spacers from?

Thanks for any input. If I need more specific on anything let me know.!

 

try swapping the cv inner cups