2021 Rubicon rear locker failure

[Barbarian]

My JTURD has been flawless up til now. Just at 30k miles picked up a strange rotational noise that has gotten progressively louder. Sounded just like a Ring and Pinion failure. Dropped the rear cover to inspect and found the locker was not Fully unlocking and had worn and chipped two spyders ! Anyone else seen this?

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[Duece McCracken]

My JTURD has been flawless up til now. Just at 30k miles picked up a strange rotational noise that has gotten progressively louder. Sounded just like a Ring and Pinion failure. Dropped the rear cover to inspect and found the locker was not Fully unlocking and had worn and chipped two spyders ! Anyone else seen this?

Pics?

Also, ouchie!

 

[Barbarian]

Couldnt get a good pic. Only visible through a very small hole in Diff carrier. Ill try and get a pic if the Dealer actually dismantles it.

 

[Barbarian]

Hoping Shadows Papa weighs in on this.
Dealership didnt let me take pics but here is what was evident.
E locker apparently rides on it own bearing on the passenger side of the diff carrier. Locker evidently didnt completely unlock or for some other unknown reason that bearing failed . Result was Locker wearing against outside of diff carrier causing the rotational noise. Dealer has entire rear end on the way But apparently will not entirely disassemble to analyse cause of failure. Any Thoughts

 

[Mjolnir]

Dozens of threads in regards to the Rubi rear locker issues. This one is slightly more intense than those threads, but this sounds just like a simple (albeit major) failure of a component in your diff.

 

[Barbarian]

Picked it up today. Dealer also performed some PCM updates. Nice and quiet now. Going to be very Deliberate about locker disengagement from here on out. Would have been nice to disassemble locker for Diagnosis . Oh well.

 

[Rusty PW]

When the axle goes back. The engineers will disassemble the axle and do a root cause on it. If it's all ready disassembled. They sometimes can't do a root cause.

 

[Barbarian]

Update after 700 miles. Removed diff cover to inspect( the new axle no longer has a magnetized drain plug) Found a tiny bit of fine metallic debris on the magnetic fill plug . The gear lube looked clear. The locker and diff Seem exactly like the old ones. I intend to change diff oil again in 5000 miles just to be safe.

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