Vibration In Front of Truck

Hi everyone!

So I just bought a lifted truck with A/T tires. It has a 6" and 35s. I don't know why, but when I get on the highway the truck shakes extremely bad in between 70-80mph. Vibration is coming from the front of the truck. Somehow, once I get passed 80mph the truck vibration decreases. It still vibrates but less noticeable than in between 70-80. I rotated and balanced the tires hoping the vibration would follow the two front tires to the back but no, the vibration remained in the front and still just as bad.
Any ideas/thoughts/suggestions??

Thank you in advance!

 

Have wheel spacers? Is this a 4x4 or prerunner?

 

Its a prerunner TRD sport. And yeah I recall him mentioning wheel spacers. I believe it was in the back only though, could be wrong. Why?

 

Probably wheel bearing or tires

 

Didn't think about wheel bearings but that could be a big possibility. Thanks for your reply, I am most definitely going to check that out tomorrow

 

I had horrible vibration/grinding and odd noises...wheel bearing fixed everyrhing

 

If there are any spacers in the front, check if they are hub or lug centric