Vibration at High Speeds

Anyone have vibration at high speeds between 75-85 mph?
Vibration goes away once I speed up or slow down. It all started when I rotated and balanced my tires. I even re-balanced them by someone else to make sure they were balanced properly. Any ideas?

I am also planning on rotating them again to see if it fixes it.

Could be your alignment.

chances are it is a balance issue, though a slightly out of true rim will do this too. You will feel it more on the front than on the back.

Are you running stock (hub centric) wheels or aftermarket (lug centric)? Wheels are absolutely centered on the hub with hub centric and they may or may not be with lug centric.

It's your tires most likely they are "cupped" and causing the vibration. I've had this before and it's from not properly rotating your tires enough, don't go front to back, rotate as per owners manual every oil change.