Had a vibration when towing my 5th wheel camper. The vibration was only in low gear. Took my truck to transmission masters in LaVergne. They diagnosed the problem as the bearings that hold the two sections of drive shaft as the problem but went on to say is was normal even for new truck with two section drive shaft and assured me I would be ok driving it. I have since been on two trips with camper and have had no problems. They could have easily taken me for hundreds of dollars on this but they did not. I will be back should I have any other problems.
more