yeah i believe it will. if it is the mounts the reason for the lighter shake in higher gears is the less torque the car puts out in those gears. your tranny and engine are not moving as much as they will in 1st 2nd n 3rd. i would try it, it wouldnt hurt. do you have any pics of your car. from what i see it looks freakin sweet man. just cant blow it up to see a bigger pic. what wheels are you running and is there an offset to them. good luck