Is there an OUTER axle tube seal kit for 2022 JT?

[jac04]

Did the tech show you where the boot was split?

Where do you think it is split?

My CV boots look just like the ones in the picture.

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[Rusty PW]

Where do you think it is split?

My CV boots look just like the ones in the picture.

My guess would be on the small end. Either on the ridge, or center of the valley. I've seen both places.

 

[adamjedgar]

Definately not a.split CV boot...its 100% leaking diff oil.

 

[WILDHOBO]

Definately not a.split CV boot...its 100% leaking diff oil.

Are you positive you didn’t remove the axle shaft on a slight downhill angle? The diff fluid passively sits on the other side of the axle seal. When I pulled my shaft on the passenger side, due to how I was parked on the driveway, I lost a few ounces of fluid, if not 6. Once it was back together, it kept looking like a leak, but it was just more fluid that got past the seal before the shaft got reinstalled. It stopped pretty quickly. I was so sure I’d killed a shaft seal that I purchased the tools to replace the seal. Those tools are still in the box. Oops.

 

[adamjedgar]

Are you positive you didn’t remove the axle shaft on a slight downhill angle? The diff fluid passively sits on the other side of the axle seal. When I pulled my shaft on the passenger side, due to how I was parked on the driveway, I lost a few ounces of fluid, if not 6. Once it was back together, it kept looking like a leak, but it was just more fluid that got past the seal before the shaft got reinstalled. It stopped pretty quickly. I was so sure I’d killed a shaft seal that I purchased the tools to replace the seal. Those tools are still in the box. Oops.

I would imagine some do leak when the axle is pulled, however, the giveaway here is the oil in the dirt around the shaft and notice the entire shaft diameter is covered in oil.

Finally, in the earlier images I took of this leak, the axle assembly hadn't yet been pulled...so it shouldn't be leaking in that case.

Oh, I've chased down an Australian axle seal for this. Doubleblackoffroad have sourced one for me within 30mins of my calling them. I'm more than happy to pay a premium for that kind of service...Bill (the owner) has been fantastic.

If it was just running out due to car being on a lean, it (the shaft itself) wouldn't look like it does in the images unless it had been pulled a number of times and never had the oil cleaned off.

 

[WILDHOBO]

I would imagine some do leak when the axle is pulled, however, the giveaway here is the oil in the dirt around the shaft and notice the entire shaft diameter is covered in oil.

Finally, in the earlier images I took of this leak, the axle assembly hadn't yet been pulled...so it shouldn't be leaking in that case.

Oh, I've chased down an Australian axle seal for this. Doubleblackoffroad have sourced one for me within 30mins of my calling them. I'm more than happy to pay a premium for that kind of service...Bill (the owner) has been fantastic.

If it was just running out due to car being on a lean, it (the shaft itself) wouldn't look like it does in the images unless it had been pulled a number of times and never had the oil cleaned off.

Very true. I didn’t catch that in the pictures.

 

[adamjedgar]

ah hang on...i didnt realize that these diffs use an electric axle lock on the rhs of the axle tube in place of hub locks

that seal is the one that has failed and the oil inside the case there is full of sludgy crap.

i found small ball bearing balls floating around inside the case...now i see why the seal is worth $500 as the seal has balls inside it and the inner part rotates like a bearing does.

Wayalift have a video which describes how this works and the pros and cons for this type of mechanism. They suggest an alternative upgrade.



and there is a Prorock 44 upgrade that is made by Dana
https://www.dynatrac.com/products/p...Qs1PCcdwqPDDzbUN0SFOlbQ7E88cZ-rHrZIvDUNFrds28

 

[adamjedgar]

what i dont know is how the heck I'm going to get that flaming seal out of the axle lock casing???

 

[ShadowsPapa]

ah hang on...i didnt realize that these diffs use an electric axle lock on the rhs of the axle tube in place of hub locks

That's been the case with Jeeps since the 1970s or so. Even my Eagle has a FAD (Front Axle Disconnect)
It splits the axle when the t-case is in 2 wheel drive mode. That allows the pinion and ring gear to sit stationary and the axles spin through the spider gears in the carrier.

No FAD with the SelecTrac automatic transfer case, though............It's blocked off because a FAD just won't work with the auto transfer case.

 

[MoxiesDad]

No FAD with the SelecTrac automatic transfer case, though............It's blocked off because a FAD just won't work with the auto transfer case.

I'd have to disagree about no FAD with SelecTrac. My 2021 JTR with the Full time auto option certainly has a FAD. It's definitely not blocked off. Just verified that while doing my oil change. Can spin the front driveshaft with both front tires on the ground. I believe the FAD shifts when you shift to 4H Auto.

 

[ShadowsPapa]

I'd have to disagree about no FAD with SelecTrac. My 2021 JTR with the Full time auto option certainly has a FAD. It's definitely not blocked off. Just verified that while doing my oil change. Can spin the front driveshaft with both front tires on the ground. I believe the FAD shifts when you shift to 4H Auto.

Makes sense - it would have to be always locked in 4HA because of how that system works.

 

[WILDHOBO]

I'd have to disagree about no FAD with SelecTrac. My 2021 JTR with the Full time auto option certainly has a FAD. It's definitely not blocked off. Just verified that while doing my oil change. Can spin the front driveshaft with both front tires on the ground. I believe the FAD shifts when you shift to 4H Auto.

I can confirm this. I have 4hi auto, and absolutely have a functional fad. I even have RCV shafts with a two piece passenger side and a stronger collar. Works great.

 

[adamjedgar]

Anyone got images or video of how they remove the intermediate shaft outer bearing?

Mine has collapsed and is in pieces...all the balls have fallen out (were sitting in the FAD housing) and the inner ring is on the shaft...i have not yet seen the outer bearing ring...it must be still inside the axle tube.

 

[WILDHOBO]

Anyone got images or video of how they remove the intermediate shaft outer bearing?

Mine has collapsed and is in pieces...all the balls have fallen out (were sitting in the FAD housing) and the inner ring is on the shaft...i have not yet seen the outer bearing ring...it must be still inside the axle tube.

You’re referring to the passenger side front if you’re talking fad, correct? And outer shaft? I’ve had my outer shaft out and in, and my impression was that there’s an axle seal just outside of the fad, but I wasn’t aware of a bearing other than the unit bearing at the hub. Am I missing something?

 

[ShadowsPapa]

You’re referring to the passenger side front if you’re talking fad, correct? And outer shaft? I’ve had my outer shaft out and in, and my impression was that there’s an axle seal just outside of the fad, but I wasn’t aware of a bearing other than the unit bearing at the hub. Am I missing something?

What holds the inner end of the outer half-shaft?

It's got to have a bearing or bushing that holds the pieces the shaft slides into in the FAD.

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