When going over 45 mph the car starts shaking, if I let off of the gas or put it in neutral it stops shaking.
I had the tires checked and balanced. Had new struts installed. Same issue. Took car back and they found a bad axel seal. This was a tire place. I think it may be the axel or drivetrain? I would think if it was the axel it would still shake if the car is in neutral? Any thoughts?