If it isn't any of the above look at replacing axles. They seem to be going bad quite a bit these days by causing an imbalance that shows up as a shake as described above. The more modified the car or higher the torque loads the more common it is. Anyway, you can spend all kinds of time and money chasing a balance problem on these cars and not find out until the end that it is worn axles throwing the car out of balance under load or under higher speeds.


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black