unusual vibration in steering wheel at 120km/h

[SnapTheStrap]

hi all i have been experiencing a very irregular or i think so since i never noticed it till a few days ago but basically im getting a weird shaking and vibration in my steering wheel and i can kinda feel it threw out the truck when i get her between 110-120KM/H but i dont get it any other time and im not having any trouble controlling it when this happens it just is kinda annoying since i know i when on a road trip and was going up to 140KM/H at times and never had this problem. is this something i should be concerned about or should i just have them take a look at it the next time i take her in for a servicing?

 

[NCcarguy]

tires need balancing OR....they are bad. probably just balancing needed, but I have had tires with as little as 12k on them starting to seperate between the rubber and the belts.

 

[SnapTheStrap]

could it need balancing cause of my offroading?

 

[AS27]

Wash the rims carefully.

Dirt may cause imbalance, esp. after mudding.

 

[SnapTheStrap]

weird cause i got er stuck again tonight was in mud for like at least 10 before i got it out and it seemed a little better driving back home but still should still get it checked out

 

[edwx]

I agree with the "mud in the rim theory." My tires usually vibrate, especially the rears, near the end of winter, from a build-up of sand in the rims. When I wash them out, I have to be careful to get the whole inside of the rim cleaned out, or it will still be unbalanced.