steering

The most likely cause would be tires that are out of balance. They tend to cause the type of speed sensitive vibrations problems you describe. Lots of other things could be causing it too, most related to the front end suspension and steering controls.

How old are your tires and when were they last balanced? Are they properly inflated and are they physically in good shape (no bulges, broken inner belts, etc.). If they are new, take them to get them re-balanced (many shops offer lifetime care packages so follow up care is free of charge). If they are old and worn, then it would be best to replace them and have the tire shop do an alignment and inspect the tie rods and ball joints.

Good luck

Stewart DIBBS

thanks for reply, tires arent that great, do plan to get new ones.