I'm having an almost identical issue with my 97 land cruiser as poster gwhend07 on November 2008. I have a loud, intermittent noise/vibration that tends to occur most frequently after a period of vehicle warm-up, and it appears to be coming from the right front side of the vehicle. This has been ongoing for 2+ years and has increased in frequency noticeably recently. Had into 3 shops at this point and noone can find the cause. Both left and right front wheel bearings have been re-packed; that is not the problem. Problem occurs most frequently at constant speed (no acceleration or decelration) and the noise/vibration generally stops (after it starts) when brakes are applied or after acceleration. Pitch also seems to increase (higher) with increase vehicle speed. Totally stumped at this point.