NHTSA Complaint #11554812 — 2021 FORD F-250

My truck currently has 92,305 miles and are all highway miles. This truck is not used for towing outside of the weight rating. The issue is that there was a vibration when I reached speeds of 65mph and higher. The dealer states that the rear end has excessive back lash, excessive wear in the ring and pinion gears and metal shavings in the rear differential fluid. Ford's rear differential service recommendation is 100,000 miles which I have not reached. I'm now required to pay over $3200 in repairs for the carrier bearings, hub bearings, pinion bearings, seals and rings plus the transmission fluid. Based on my driving habits, I do not think this issue is something that I caused, I believe it to be a Ford issue which they deny. I have read many blogs online where other owners have this same issue and someone needs to look into it further.