Well lets see I have driven my Jeep for about 1929 miles and it is currently at the dealership being looked at. This weekend when my dad was down I asked him to get in it when I backed up in the driveway, which has a slight incline to see if what I was feeling was normal. When I back up I would feel a little shuttering and some slipping. I did not know what to think. I just thought maybe it was the way it was geared. My dad told me nope, we went and check the tranmission fluid which looked fine. I did some digging on another JK forum and found someone else who had the same issue. That person had to have their transmission replaced. I just dropped it off today and they said they would have it for a couple of days. I am hoping they do not come back with any crazy stuff saying that they can't replicate the issue, which they seem to normally pull when they don't want to do anything about it. I miss my Jeep already :(