Before spending the big bucks, have all the wheels taken off and reinstalled on the car. Perhaps your wheels were over tightened when they did that last oil change and tire rotation. Have the shop use a good old fashioned manual torque wrench and check the owner’s manual for the proper ft/lbs for your truck. Then run it for a week or so and see if the noise is less, more, or the same. This might help rule out one problem and lead you in the right direction.