Ok, I posted about a bad vibration yesterday. I got under the truck and looked, I have a two piece driveline. I assume the carrier bearing is the piece at the end of the front drive shaft, where the second drive shaft connects. I am not sure how to tell if the carrier bearing is bad, but with the truck off and in park, I was able to lift the drive shaft about 1/2 an inch in any direction. Would that mean this is the cause of the vibration? I cant find a write up on it, and almost all the posts referencing a carrier bearing are on 3rd gens. Thanks.