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Drive shaft Vibration

Dracer173
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Another JR Senior Enthusiast

Another JR

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What makes you think it’s the driveshaft?  At 80 mph with 34 inch tires the rotating frequency of the wheel is 13 hz and the rotating frequency of the driveshaft is 49 hz.  

BlancoSilverado Enthusiast

BlancoSilverado

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Posted

Have the rim/tires checked for balance, if possible have them road force balance. most of the time its a simple balancing issue. 

Dracer173 New Member

Dracer173

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I don't think it is the tires the vibration is not felt in the steering and not a rumble like tire out of balance had the same problem with my 2013 dual wheel 3500 and the tires were road balanced the vibration is like a hum as soon as i cross 80mph and up.

 

Another JR Senior Enthusiast

Another JR

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Posted (edited)

Driveshaft vibration seems very unlikely to me. Does the tone you hear vary in frequency directly with variation in speed?  If not, and it only comes on above a certain speed, it’s likely to be an aerodynamic turbulence related tone. These trucks are not very streamlined. 

Edited by Another JR
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Dracer173 New Member

Dracer173

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On 4/29/2022 at 11:33 PM, Another JR said:

Driveshaft vibration seems very unlikely to me. Does the tone you hear vary in frequency directly with variation in speed?  If not, and it only comes on above a certain speed, it’s likely to be an aerodynamic turbulence related tone. These trucks are not very streamlined. 

it sems the sound dose change above 80 m,ph  but stays that way all the way to 98 mph the sound is a humming that you can feel in the cab. Thank you guys for the help

 

Edited by Dracer173

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