I think I posted elsewhere here about this, but they put my JL on the rack and another new JL on the rack and both had the same noise when you rolled the wheels.
Ultimately Jeep Customer Care ended extending my drivetrain warranty by another 25k miles for my inconvenience. Which to me really...
Here's how I tested mine, for your data:
Floor jack (spun wheel, heard sound while in Park and engine OFF)
Floor jack (spun wheel, heard sound while in Neutral and engine OFF)
Floor jack (spun wheel, heard sound while in Neutral and engine ON)
Replicated this at the dealership but on a lift...
I had my entire axle replaced, too and it did not resolve the problem for me. So that isn't the solution, or there are a large number of faulty axles in stock, or something else in the drive train is causing them to fail once installed.
Hard to tell while driving due to other ambient noise, but I believe I am hearing it become a low, fluid rumble while I'm driving at higher speeds. But maybe I am just imagining that.
I wish we could get an actual Jeep engineer to comment on this and put it to bed.
This is audio of my jeep:
I took the Jeep and the audio to the dealer yesterday and the service manager and two mechanics, including the head mechanic, seem to agree that it is a normal sound. They also put another similar rubicon on the rack and spun its wheels and...
We'll be there in March. Can anyone recommend some simple primitive trails that I can take the family on? We range from 13 - 72 in age, so we can't get too crazy. Some scenic gravel roads at best, maybe. ;)
Their first response was "bad spot on one of the spider gears” and the rear differential was being replaced. Was told the "axle" was on sight, but now they are waiting on a bearing.
So that was all confusing, but in order to get the bearing (we had been waiting for it for two weeks already)...
My dealer actually replaced the entire axle assembly and right rear shaft, and I am still hearing the sound.
1 68401895AA AXLE-SERVICE REAR
1 68401892AA SHAFT-AXLE REAR
I'm about to do just that. I did have a case opened with them, but don't know if they've closed it when the dealer threw in the towel. Customer Care basically came back and said "dealer says they can't fix it until it gets louder, so that's that."
I'll update if progress is made.
I'm wondering how to re-approach this with the service department. I feel they've treated me fairly up to this point. But now I've got to convince them to listen to a couple of videos to hear what I'm talking about. You'd think they would have done this themselves.
I wonder if I could get them...