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Message: <blockquote data-quote="2slo95fiveoh" data-source="post: 473033" data-attributes="member: 8966">well, in my experience in the automotive field, a highway speed vibration is (most of the time) either wheel imbalance, or warped rotors.I would take it out on the highway, try and get up to around 70mph, (where you should notice a significant vibration) then press on the brakepedal with MILD pressure (don't need to be locking the wheels up on the highway.. haha). If your vibration gets worse/more intense, then you have some warped rotors, regardless of brake pad life. Now if the vibration begins to disipate as your speed slowly decreases, then i would beginto lean more towards a wheel/tire problem. You mentioned you put new wheels/tires on, when you had them balanced, did you buy them as a package deal (already mounted and balanced) or did you have a shop mount them?</blockquote>