I have a 05 2500 Dodge diesel. I am getting a pretty bad vibration when towing something behind me. It starts vibrating between 55 to 60 mph. You really notice it bad when you are on a hill if the motor lugs down under 60 mph. When it does this i am losing no power and the engine seems fine. I am thinking something in the drive train somewhere. I can drive it without towing anything and it very seldom does it. When it starts doing it while towing you can accelerate really hard and it will stop shaking and runs fine. I noticed this evening from a dead stop when i take off i am getting something that sounds like a metal rubbing noise coming from the back of the truck. Or that is where it sounds like it is coming from. Any help will be greatly appreciated....

 

Could be a carrier bearing (If your truck has one) or a pinion bearing, Carrier, Driveshaft issues, Axle bearings or transmission issues. Fill us in on some of the details of your truck! Auto, Manual? Gearing ? What type of weight are you pulling? Does the vibration stop when you are coasting with a load?

 

its not your tq convertor is it

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i noticed a vibration on my 08 when i was towing and smarty on 7. it was my tq convertor. it dont do it if tq convertor is not locked. i just had to back off on it a little. i think i am going to upgrade into a suncoast

 

Tony, your right on. The thing that makes me wonder is if it's only under load and acceleration and only with a load it could be drivetrain related!


PS.... You know I've got your back on the suncoast stuff!

 

The truck is an automatic. I am pulling a bass boat or either my side x side. Probally around 2500lbs at the most. As far as coasting it seems fine. You notice it when you are pulling a hill more than anything. A dealer put a new rear driveshaft in the truck a couple of years ago and i probally haven't put 5000 miles on the driveshaft. I think the truck has like a 373 gear ratio.

 

It very well could be a transmission issue, Probably a converter. Are higher transmission temps seen when this occurs, Or within 5 minutes of it occuring?

Is your truck a long or short bed? 4 door?

I guess what I'm getting at does it have a carrier bearing and whats it's condition! Drivetrain vibration should always start with items like your carrier bearing!

 

It is a 4 door with a short bed. I don't have any way to tell the tranny temp.

 

Any modifications to the truck? Power adders? I would get under the truck and check the carrier bearing before I did anything else!

 

i think drive shaft carrier vibrations and tq convertor shutter will sound something alike.

 

Your right, the metal on metal sound he heard could be the result of a failed carrier bearing allowing the driveshaft or bearing componets make contact with the loop that holds it...