Originally Posted by Miramar Owner
Since you mention it's in your steering wheel it does sound like a balance issue. Could be a separation in the steel belt. You could do a spin balance or move the front tires to the rear.
It could be the beginning of a belt separation, or if one of your front wheels were balanced using more than one weight one or more of them may have came off. I would go to a good tire shop and have both inspected. Steer axle tire issues are nothing to mess around with IMHO.