2003 Screw, 153k: so I acquired a vibration going down the highway at 45mph and up and was pretty strong. More or less felt it all over, steering wheel, dash and seat. I had new tires put on a year ago so i figured I'd have them rotated and the drivers front wheel had no weight so I had my finger crossed that was it. Well the vibration is much less now but comes on at 40 -60 and is in the seat more than anything, that tire w/o the weight is in the passenger rear now. Fleet Farm said they balanced the tires... 2 of them do have new larger weights on them. What do you guys think? Wouldn't a 17" truck have to have a weight? Or other ideas on this?