I installed my lift a little over a week ago & I'm having a slight vibration at around 20-30mph approx. It is not very bothersome or anything but just wanted to make sure it is not damaging anything being there. I do not go offroad much as I have a Pre-runner & just wanted more height & the look mainly. The lift consisted of Bilstein 5100's set to 2.5" in the front, and OME rear shocks with a 2" AAL in the back. Otherwise, the truck rides great & no problems. I do plan to get aftermarket UCA's in the future but other then that am happy with the lift in general. Thanks for any advice or tips.