Hi guys. I found that on the highway my wheel vibrates side to side a bit. Nothing extreme and it does not make the car feel unstable. Car does not seem to pull but it's hard to tell since the highways around here are banked. It does not pull at lower speeds. It only vibrates from around 54mph+. It does not even out any speed up to 70mph that I have seen. I do know that a tire that was on the rear before winter is now on the front after I took the winter tires off. I don't know if this would cause anything, just trying to add information that might be found relevant. 2004 G35x 61k miles.

 

Wheels need to be rebalanced. Alignment should be checked.

 

also check your tires. worn tire can act funny