New axle? Wow.Update on the carnage. Took the Jeep to the Stealership today after pressure washing the underside extensively, letting it dry, and then still pulling 10 more pounds of dirt out of the under carriage. Got my first oil change and had the rear diff lock message looked at. Turns out it's not locked now. but still showing it, as previously it was locked. Diagnoses is bad sensor. They can't get a sensor, or Jeep won't let them tear apart the rear end to change the sensor, so I get a new rear axle assembly next week. Glad I didn't put axles and gears in it yet.