I posted a while back about a vibration my truck has between 70 and 80 km/hr. The dealer I bought it from said it was an aero issue from the ARE cap I installed. I removed the cap and vibration is still there. Back to dealership again. They said it is from flat spots on the tires from overnight parking. Still vibrates after 340 km of driving so that's not it either. My truck has spent the better part of 3 weeks at the dealer trying to figure this out. They have removed the rear motor drive and replaced the drive axles and rear wheel bearings also installed wheels from another lightning. Still no success. Going to another dealer in chelmsford northern ontario Aug 19 to see if they can figure out this issue. Now my right rear tire is wearing badly on the outside edge and my tailgate seems to have a mind of its own, closing periodically. The dealer in Chelmsford says they have a tech dedicated to EVs only. Seems like Ford is not training their techs very well on the lightning trucks. The dealer I bought it from finally admitted they really don't know much about traction drive motors and have no diagnostic eq specifically related to the electric drives.