so tried searching for an answer but seems all i saw was vibration at speed. i have this weird issue with the car having what feels like a driveline vibration but can not find the reason. from the start, it is an 09 GT. has 105K miles. i have had my friend/mech try everything i have looked at and more. only happens at idle, items replaced. all belts, crank pulley, had him inspect the carrier bearing and couplings with no issues. anyone else have this? got the car from my dad after he passed and have been working towards restoring to the best of my abilities. but this one has me baffled. thanks for any and all feedback is greatly appreciated. chris