OK so on my 05 3500 I have a driveline vibe at 70. Above 55 is just starting to feel it and over 70 is almost gone. I am thinking U-joint, driveshaft out of wack, tires etc.... My ??? is anyone have a driveshaft go bad and did the dealer say anything about problems? I did a search but nothing came up.

thanks

 

Mine has the same vib and it has 288 miles....it's a characteristic of these trucks. If you do a search you will see alot of threads about it.

 

Mine had the same problem. I could not stand it. I replaced the rear U-joint and the Vibe. Went away. Same thing started at 55 mph. I found that the U-joint was frozen in one direction. I would start there.