^^^ Right on there.
Cocoa you did say two different things as cknight quoted and changed to red.
OP, like mentioned before have the stealership road force the wheels and tires. Take it for a spin on the same road(s) as previous where you noticed the vibration and maintain the same speed(s) as before. If the vibration is gone then good. If not, then try the sandbag or weight in the back trick and go for a spin as before with speed and road the same.
Cocoa you did say two different things as cknight quoted and changed to red.
OP, like mentioned before have the stealership road force the wheels and tires. Take it for a spin on the same road(s) as previous where you noticed the vibration and maintain the same speed(s) as before. If the vibration is gone then good. If not, then try the sandbag or weight in the back trick and go for a spin as before with speed and road the same.