for the last week or so i was getting a vibration from the right front, it was small and im only at 70 mph for like 1/2 a mile on the hwy when it would do it. today it felt worse. sadly had to work today, but only 1/2 day, so i rotated the tires in all of 15 minutes, both sides. still cant believe i did it that fast, even gave the front end a quick check over. no more vibration at all. front tires were cupped pretty good too. they were likely right about the 6,000 mile mark, when i normally do my rotations.
pro tip for those who may not know, with a 3 ton jack you can lift one whole side in the air with the jack on the frame between the doors. then swap front to back. repeat on the other side.