hey guys, i have a 07 GT with nothing more than a few bolt ons, Steeda UDP, intake, and tune. Its auto with stock 3:31 gears. I drive 60-70 miles daily, and i want to put 4:10 gears in it. Its all highway driving, my question is, would it hurt the motor raising the RPMS during the commute in any way? I've heard it would throw my driveshaft out of balance as well turning those RPMS for that amount of time. I drive around 70-75mph, i'm not really worried about gas mileage though. Any help would be greatly appreciated!