i used the search function already and didn't come up with what i am looking for. what i want to know is will the vibration hurt or do anything to the truck in the long run. i just lifted my truck up 3" with the cornfed spacer all is good what i have an assuming is the vibration but what it sounds like is like tires rubbing or tires riding on the edges at between 15 to 40 mph, not to bad but i notice it but i can live wih it if it won't hurt the the truck. still have stock tires and no alignment down yet. the wheel is pretty straight but it does want to pull to the left a little and that is where i feel the vibration or noise coming from.