Mine was way better when they replaced the bent rim several months ago, now I'm wondering if more than one rim was bent. Mine does well up to about 70 mph, then at 78, which I drive nearly 85% of my commute, it shakes off an on, but not always. If I get on the onramp and put the foot down and it's smooth, I actually notice it more than the usual shake. I can notice it in the driver's seat, then I look over and see the passenger seat moving back and forth. Put my hand on the passenger seat headrest and feel the vibration. Next oil change is in about a month, will have to have them go back to the drawing board. It's 75% better than it was before, but still not smooth as silk, in which a $55k truck should be. Grrrrr.