mkay this is really annoying me because i can't find the possible cause.
when i accelerate over 60 mph, my car shakes. initially i thought that the new tires i just purchased were not balanced properly, so i took it back and had them checked. they were re-balanced with new weights, and the tech even showed me that they balanced at zero on the machine.
then i thought maybe one of the VF poly mounts had broken. i checked them all, but they are all still intact and in very good shape. i have all 3 mounts BTW, and they make for an awesome, solid ride.
i am stumped here, and it's really bumming me out... the SVT shouldn't shudder and shake when i stomp on the accelerator. and it's only when i am accelerating. when the car is cruising, say at 65 or 75, or whatever speed... it is smooth. only when i stomp on the accelerator does it shudder, and this only happens around the 60 mph mark or above.
any ideas anyone?