So, I checked my motor mounts when I replaced my rings and they were fine and I replaced all four rotors this week and it still shakes. My girlfriend thinks that it may be the fuel filter since it only shakes while accelerating from 40-80 mph. I am don't really believe it has anything to do with the fueling but rather the chassis or drivetrain. Is there any reason to be believe that what she is suggesting is true? Let me know, because I am on the brink of having a mechanic diagnose it so I can fix it.