Hmmm, should the axle nut torque be 118 ft/lbs for a 99 GP? Vibration was independent of turning, occurring going in a straight line but only while accelerating and pronounced above 40 mph. Thanks again for creating this thread.
EDIT: Gotta add, just got off the phone with NAPA. Was told to bring it in to exchange for another new one. That's almost painless, lol.