[slavegear]

hello and merry xmas to all,i had the same problem in one of my cars, the vibration was at a partical road speed and no engine speed,my universal joints on my driveshaft were past the service date.a simple test is to try to move driveshaft uni. joints in the oposite direction to which they are designed to go,if any movement is found please replace them, as if they let go your driveshaft may come through your floor or dig in the road and flip you over,bad situation,hope this helps.later.