2016 Ford F-150 9.75'' locking differential - "Howling Noise" - (Cause of failure).

[@ajcc9817]

What did you end up doing for repair? Just had my 14 f150 with locking diff go threw something similar gears were good but needed a complete overhaul of bearings/race

[@bbracing3925]

The customer opted for a used unit, for cost reasons. The carrier bearings and races were shot. The ring & pinion also had unusual lash wear, "probably" from torque on the bad carrier bearings. I do not recommend those aftermarket rear differential covers at all!