ok so a month ago or so rotated my tires front to back. then i noticed vibration, so i went to the shop to get my tires balanced again. they told me i only needed my front balanced so i only balanced the front, problem solved.
this weekend i went up north and noticed after 80 that the rear vibrated(right side a lil more). i had lots of junk in the bed so i thought dam need to balance the rear tires. went to the shop today and balanced the rear but they said they where ok but adjusted them just a lil.
i havent been on freeway so i dont know if it went away. i have to wait till the traffic dies down. if it doesnt go away. anyone have any ideas what it could be. maybe the driveshaft needs balancing or the something with the diff???