Metal shaving in rear transfer case @ 86K mile fluid change

[bhuckatc]

2020 Jeep Gladiator Sport S, 86K miles, rear transfer case drain and fill, found this metal shaving on the magnet, see pictures. How concerned should I be?

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[heretic]

First do you mean the rear differential…
And yes I would pull the rear cover and inspect you may have a chipped or broken tooth.

 

[Proximo]

Anticipating what you find.

Mine was rear diff 102k miles. I haven't opened it yet, it's driving great with no hum or vibration. @WILDHOBO had a full rebuild after finding his

 

[WILDHOBO]

Anticipating what you find.

Mine was rear diff 102k miles. I haven't opened it yet, it's driving great with no hum or vibration. @WILDHOBO had a full rebuild after finding his

When I first opened it, I was sure I’d find bearing race pieces, since the ring gear was fine. But it was the pinion gear. Not in great shape. But it was still moving the jeep.

 

[Stan H]

When I first opened it, I was sure I’d find bearing race pieces, since the ring gear was fine. But it was the pinion gear. Not in great shape. But it was still moving the jeep.

You seem to have a different pinion bearing , basically an old style "upgrade"

 

[WILDHOBO]

You seem to have a different pinion bearing , basically an old style "upgrade"

Those were already aftermarket 5.13’s. I honestly didn’t pay much attention to the pinion bearing. But the new one after that came from Revolution as part of their master install kit.

 

[FLY-DOG]

When I first opened it, I was sure I’d find bearing race pieces, since the ring gear was fine. But it was the pinion gear. Not in great shape. But it was still moving the jeep.

That's what you call a pending failure. Just in time maintenance is better than too late maintenance!

 

[WILDHOBO]

That's what you call a pending failure. Just in time maintenance is better than too late maintenance!

Pending with a capitol dollar sign.

 

[VA6489]

Those were already aftermarket 5.13’s. I honestly didn’t pay much attention to the pinion bearing. But the new one after that came from Revolution as part of their master install kit.

Yukon? Looks like bad metalurgy. Yukon had some issues with Pinion ( Produced in China) for a few years now. The way that damage looks it would seem the process to harden the gears failed or the metal itself was not poured right/had impurities in it.

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