Just fyi, there is a good video on the drive unit and how to replace the plastic cheap gear and motor in the drive unit with the metal gear.
ITs for a GM truck but the drive unit is similar and you see exactly how the drive unit comes apart. Actually getting to the drive unit is ofcourse different, wish someone would post a video of how to dismantle the mirror to get to the drive unit.
And i love the Ram Cares guy on here ... just so you know, if you have so much as a SCRATCH on the frame of that mirror, Ram will deny your warranty claim by saying you hit something with the mirror. take a look at the video once he gets the drive unit apart and you will see how pathetic the tiny plastic gear is. You can break these by manually folding a few times. Go to a Ram dealer and start manually folding their truck mirrors and watch how fast the guys come running to stop you. Get the metal gears and better motors in there and the mirror is fine again.