NHTSA Complaint #11570797 — 2016 JEEP CHEROKEE

Hi I have a JEEP Cherokee Trail Hawk edition 3.2L 6 Cylinder SUV. The Vehicle has 53,657 miles on it. I recently took it to me Mechanic as the rear Differential was making noise. He recommended I take it to the Dealer due to its low mileage and defective rear Differential. Based on this, I brought it to the Jeep dealer ship in Nashua, NH 03053. They diagnosed the problem of a bad Rear Differential and wanted to charge me $4000+ dollars but could not get the parts. Whereas, I searched and learned that this Rear Differential is backordered by over 700 units. At 53,658 Miles to have a bad rear Differential is insane. If I continue to drive this vehicle on the Highway, at Highway speeds then either I am going to have a severe accident and hurt myself or Kill someone else driving due to a Manufactures defect in their rear Differential. These rear Differentials should be recalled as they are a hazard to the public. Jeep does not care of their defective units, as they state "They are out of Warranty" . My daughter drives this vehicle and she cant get the parts to repair and Jeep doesn't offer anything other than "GIVE ME YOUR MONEY AND WE WILL GET IT WHEN ITS BUILT! These vehicles are unsafe in this condition. If the rear differential seizes up it will be a multi car fatality. Can you please look at this situation and ask Jeep to execute a recall?