Rear End issue bad differential bearings

[aldo98229]

Just talked to the the shop they are going to change out the whole assembly. Thanks for your input it helped

Good luck!

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[CarbonSteel]

When you get it back change the oil early--at less than 1K miles. Change it again at 5K miles and then again at 20K. That should remove all of the clutch disk material that is typically the cause of contaminated oil which leads to early bearing failure.

 

[OldJupiter]

Have my jeep in the shop now! Was making a clicking noise in the rear end, The found that the bearings were shot! Not sure what caused the issue. I had the dealer put a Mopar 2" lift and new 35" wheels and tires on it has 52,000 miles on it. Has I believe an 8 speed transmission and a 3.45 gear ratio. Anyone had similar issues?

Same issue. Same mileage! Except I had them out in 37s. Warranty fix right now.

Edit* No LSD

 

[Jeepmanrmy]

2018 JLU Sport-S, at 65k miles started hearing whining in the rear differential area, of course out of warranty and Jeep wanted $7400 to replace the whole rear differential. I have the M200 style (3.45 gears) and parts are backordered until Oct '24, both from Jeep and aftermarket sources.
No off-roading, no big tires, no towing. From what I read this seems to be a frequent problem for the JL's.

 

[AlgUSF]

2018 JLU Sport-S, at 65k miles started hearing whining in the rear differential area, of course out of warranty and Jeep wanted $7400 to replace the whole rear differential. I have the M200 style (3.45 gears) and parts are backordered until Oct '24, both from Jeep and aftermarket sources.
No off-roading, no big tires, no towing. From what I read this seems to be a frequent problem for the JL's.

This is an old thread, but I'll give my $0.02.

As one who has rebuilt my differential as part of a regear to 4.56 it isn't really that difficult for a decent 4x4 shop to determine the problem and repair it for under 2K max. To the dealership the rear axle is a single unit, go somewhere else.

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