Leaking axle seal?

[Jeep_willysJT]

8000 miles on mine and it started seeping on the right rear. Brought it in and they do have a tsb out on them. Looks like I am waiting on an axle now, all under warranty luckily. Glad I knew beforehand due to the forums here!

I'm happy that there is now an active Service Bulletin

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[Mtpisgah]

Hopefully there will not be issues after the fix, but it is good to know it is not terribly expensive to fix it if needed after warranty.

 

[mountainpass]

8000 miles on mine and it started seeping on the right rear. Brought it in and they do have a tsb out on them. Looks like I am waiting on an axle now, all under warranty luckily. Glad I knew beforehand due to the forums here!

Get a copy of the TSB as first I've heard.

 

[2wheeltinker]

Per this thread folks have still had leaking issues after replacing with aftermarket axles.

https://www.jeepgladiatorforum.com/forum/threads/advantec-axle.33257/page-2

One person said it won’t solve the problem. He also didn’t say he did the upgrade himself and made a blanket statement seemingly with no first hand experience.
I installed mine over 10k miles ago at this point. No issues since. So now it’s 1:1 based on that thread, and I’m first hand. Take it for what it’s worth ??‍

 

[Mojave2021]

One person said it won’t solve the problem. He also didn’t say he did the upgrade himself and made a blanket statement seemingly with no first hand experience.
I installed mine over 10k miles ago at this point. No issues since. So now it’s 1:1 based on that thread, and I’m first hand. Take it for what it’s worth ??‍

Ok that’s good to hear. Thanks!

 

[KW80]

Checked with my dealer and supposedly the parts will be there next week, which would be approximately 1 month from when they were ordered. If indeed this happens I will view it as a win considering the supply chain nightmare we are all experiencing.

Looks like I spoke too soon, now I am being told end of October. Guess it will be dripping oil for another month? The hub, brakes, etc. will be well coated by then, already pretty slimy back there. Haven’t noticed any on the garage floor so the oil must be primarily coming out as I’m in motion.

 

[Mojave2021]

Update after returning from the dealer after 1 right rear axle assembly replacement, subsequent rear brake show replacement and reoccurrence of the leak.

Dealer confirmed the leak and after talking to Jeep corporate decided to order the rear complete axle assembly. Part number is 68422837-AF for my Mojave. And as always, on backorder. They hope to have an ETA next week.

 

[sdk131]

If anyone gets a TSB # or a copy (posts above mention a TSB) please post it here. I am in active communications with JeepCares/FCA Customer Care (with an open case #) and they were/are not aware of any TSB as of yesterday when I spoke with them. They also seemed unaware that this issue was happening to many people. To be fair, I am sure they are just customer service reps that work through the tickets/cases, and may not be the most technical folks and/or may not have full access to technical/engineering info on the inside of the organization.

 

[ShadowsPapa]

If anyone gets a TSB # or a copy (posts above mention a TSB) please post it here. I am in active communications with JeepCares/FCA Customer Care (with an open case #) and they were/are not aware of any TSB as of yesterday when I spoke with them. They also seemed unaware that this issue was happening to many people. To be fair, I am sure they are just customer service reps that work through the tickets/cases, and may not be the most technical folks and/or may not have full access to technical/engineering info on the inside of the organization.

Yeah, the STAR people are the team that knows how many, etc. But even then, I have wondered about communications between them.
When I dealt with the dealer and Jeep over the trailer brake controller issues - the STAR people told my dealer's tech that I was the first case they had heard of. I gave the dealer all the info I had collected, etc. and it wasn't long before a STAR communication came out. Maybe others reported in, too - but I found it odd I was the first. We started a formal case.

 

[shrinkhead]

would aftermarket axle shafts fix this issue ? or is the only answer as always to go one tons!!!???

 

[Hootbro]

If anyone gets a TSB # or a copy (posts above mention a TSB) please post it here. I am in active communications with JeepCares/FCA Customer Care (with an open case #) and they were/are not aware of any TSB as of yesterday when I spoke with them. They also seemed unaware that this issue was happening to many people. To be fair, I am sure they are just customer service reps that work through the tickets/cases, and may not be the most technical folks and/or may not have full access to technical/engineering info on the inside of the organization.

Whether you are sitting in a dealership service area waiting room with 5 other people with the same problem or are the 20th caller that day with the same problem to corporate customer service, you will always be the first person they will say to you as having that problem.

 

[Maximus Gladius]

would aftermarket axle shafts fix this issue ? or is the only answer as always to go one tons!!!???

Here’s a shot in the dark… I think it’s the oil. There may be additive/chemicals missing in Mopar’s gear oil that addresses keeping seals conditioned and tight; keeps them from shrinking from heat. When you look at other oils, in this case AMSOIL (I use it but not selling it or even promoting it) I recall having this discussion in length with the rep. I just went out to the garage and read the back of the 75/90 Sever Gear oil and there’s nothing specifically stated there about seal conditioning but I’ve seen it in other write ups or material about it.

My gut just thinks it’s a chemical or additive issue. I have no proof or want to pick on Mopar’s oil and definitely don’t want to upset anyone. Critically thinking it through?

 

[ShadowsPapa]

Here’s a shot in the dark… I think it’s the oil. There may be additive/chemicals missing in Mopar’s gear oil that addresses keeping seals conditioned and tight; keeps them from shrinking from heat. When you look at other oils, in this case AMSOIL (I use it but not selling it or even promoting it) I recall having this discussion in length with the rep. I just went out to the garage and read the back of the 75/90 Sever Gear oil and there’s nothing specifically stated there about seal conditioning but I’ve seen it in other write ups or material about it.

Then again - why only right? So far not a left seal has leaked.
You don't need seal conditioning - that's marketing for one thing, otherwise aimed at older vehicles. New seals are supple. Seals SWELL, not shrink in heat.
I do not like anything that adds chemicals that supposedly "treat seals" as they are almost always solvents & solvents + rubber = bad, IMO. I've seen mushy seals or seals that were "tightened" by additives and caused to split.

Axle seals are already an interference fit over the shaft. And pressure from the inside presses them even tighter. These may also have a preload spring, forcing the seal against the shaft.
I would never use a fluid that "conditioned" seals in a new vehicle. That's for old vehicles with worn or hard seals and the owner is trying to get by a few more miles before the inevitable.

 

[Hootbro]

Here’s a shot in the dark… I think it’s the oil. There may be additive/chemicals missing in Mopar’s gear oil that addresses keeping seals conditioned and tight; keeps them from shrinking from heat. When you look at other oils, in this case AMSOIL (I use it but not selling it or even promoting it) I recall having this discussion in length with the rep. I just went out to the garage and read the back of the 75/90 Sever Gear oil and there’s nothing specifically stated there about seal conditioning but I’ve seen it in other write ups or material about it.

Unless they changed to some unknown and uncontrolled supplier for their gear oil, I would say it is remote that there is an issue of a missing chemical composition of the gear oil.

The basic GL-5 spec for gear oil I am sure will have specifications on seal compatibility and the lack of a bottle label mentioning it is not a red flag in my book.

 

[Renegade]

Here’s a shot in the dark… I think it’s the oil. There may be additive/chemicals missing in Mopar’s gear oil that addresses keeping seals conditioned and tight; keeps them from shrinking from heat. When you look at other oils, in this case AMSOIL (I use it but not selling it or even promoting it) I recall having this discussion in length with the rep. I just went out to the garage and read the back of the 75/90 Sever Gear oil and there’s nothing specifically stated there about seal conditioning but I’ve seen it in other write ups or material about it.

My gut just thinks it’s a chemical or additive issue. I have no proof or want to pick on Mopar’s oil and definitely don’t want to upset anyone. Critically thinking it through?

A chemical that affects the right disproportionately to the left, and not the same material in the front? No.

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