FOR BEING A JEEP AND BE ADVERTISED AS OFF-ROAD, I HAVE NEVER BEEN OFF-ROAD AND MY VEHICLE NEEDS ENGINE STUDS REPLACEMENTS. THE MOTOR HAS A LOT OF VIBRATION WHEN STOPS AND TRANSMISSION BOUNCE WHEN CHANGES GEARS. I BELIEVE IS A BAD PART BECAUSE I COULD NOTICE SINCE NEW BUT NOW IS VERY HARD.