1998 shaking over 50 mph
 

For about a week now my car has started shaking any time i go over 50 mph.

I have checked the tires, wheels, and oil pressure. No issues were found. I've heard rumors of Chevy investigating similar issues in the newer models but I don't think it applies to my particular model.

Any ideas?

Welcome to the forum.

Since I don't know the history of the vehicle, these ideas will just be shots in the dark. Have the wheels and tires road forced balanced. Have the driveshaft checked for balance. Have the U-joints checked. Have the wheel bearings front and rear checked.