Same issue, same fixes. Looking at possibly a bent axle or bearing. At very slow speeds it feels like truck is wobbling down the road. When i bought the truck, i had to get dif bearings replaced. Dealer said the bore was not correctly aligned for one of the bearings and they replaced all the bearings. I cant remember what bearing it was, seems like it was carrier bearings. This would probably explain my issue currently. 320k miles since they fixed it when it was new and under warranty.