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Old 05-17-2019, 07:57 AM
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Time for a new axle??

Hey all. Was under my 2015 Rubi last weekend doing the diffs, trans-axle and manual tranny oil change when I noticed some grease that had been flung around the top. I have a 3-1/2" Metal Cloak lift with just over 60K miles. I don't know much about this, but I've read that the more extreme your axle drop is, the harder things are on it- and that I could expect this to happen eventually with any lift over about 2". What say you?

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Old 05-17-2019, 08:11 AM   #2
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That's not an axle, it's a driveshaft. And yes, I'd get it replaced soon. Once the grease starts flinging, it is the beginning of the end.
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Old 05-17-2019, 08:28 AM   #3
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You could replace the drive shaft with a stronger aftermarket one, or just replace the rezeppa joint with a new one. Teraflex has a high angle one.


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Old 05-17-2019, 08:30 AM
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Originally Posted by mommymallcrawler View Post
That's not an axle, it's a driveshaft. And yes, I'd get it replaced soon. Once the grease starts flinging, it is the beginning of the end.
My bad! Yeah- that's what I meant. How long you think I got?
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Old 05-17-2019, 08:35 AM
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Originally Posted by suffolklou View Post
You could replace the drive shaft with a stronger aftermarket one, or just replace the rezeppa joint with a new one. Teraflex has a high angle one.


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So what's the preferred route? I'm not trying to burn cash in buying the whole shaft if it's unnecessary or if there's not a big difference in the final performance. Is replacing the joint a tough job, or something that can easily be done?
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Old 05-17-2019, 08:46 AM   #6
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You dont know how long it's been flinging grease. The worst case scenario - it is bone dry, seizes, and destroys your transfer case and potentially a few other things in the process, which is very not cool if it happens while say driving. Best case - you've got time to run it while you order up a replacement and get it in. Safest case - pull it now. You can drive without a front driveshaft forever, just means you dont have 4WD, only 2WD until you get the replacement.

I personally would not bother rebuilding a stock one or replacing it with a stock one. Get an aftermarket, keep it greased, and drive on.
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Old 05-17-2019, 09:04 AM   #7
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How long you think I got?
About a week before you decide to replace it at your convenience.
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Old 05-17-2019, 09:09 AM
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Originally Posted by mommymallcrawler View Post
You dont know how long it's been flinging grease. The worst case scenario - it is bone dry, seizes, and destroys your transfer case and potentially a few other things in the process, which is very not cool if it happens while say driving. Best case - you've got time to run it while you order up a replacement and get it in. Safest case - pull it now. You can drive without a front driveshaft forever, just means you dont have 4WD, only 2WD until you get the replacement.

I personally would not bother rebuilding a stock one or replacing it with a stock one. Get an aftermarket, keep it greased, and drive on.
All good points- thanks again.
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Old 05-17-2019, 09:24 AM   #9
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As mentioned, running it while you plan out how to replace it is risky. If it fully fails it can get expensive fast.
If you aren't ready to replace / repair it just remove it and run without 4 wheel drive. It will be fine with only the rear shaft. I drove a couple thousand miles out to Moab that way (installed the new front shaft when we got there).
The only drawback to aftermarket is sometimes it opens up the pinion angle can of worms. We had to adjust our pinion angle with both the aftermarket front shaft and the aftermarket rear shaft we went with.
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Old 05-17-2019, 09:33 AM
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I'll prolly just leave the shaft on there & not touch 4WD till I get this taken care of within a couple weeks. No harm in that right?
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Old 05-17-2019, 09:56 AM   #11
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I'll prolly just leave the shaft on there & not touch 4WD till I get this taken care of within a couple weeks. No harm in that right?


The drive shaft still spins even in 2wd since the front hubs don't unlock. The only way to safely run is to remove the drive shaft.
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Old 05-17-2019, 10:18 AM   #12
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I'll prolly just leave the shaft on there & not touch 4WD till I get this taken care of within a couple weeks. No harm in that right?
Wrong. If it is installed it s spinning, whether in 2WD or 4WD. It is only a matter of some bolts to remove it completely. And if you are fixing or repairing it you have to remove it. So you might as well remove it.
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Old 05-17-2019, 11:47 AM   #13
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Get an Adams or Tom Woods DS and be done. The stockers are crap and not designed for your current set up. 3 1/2" of lift it was going to be needed sooner or later.
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Old 05-17-2019, 03:18 PM
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Get an Adams or Tom Woods DS and be done. The stockers are crap and not designed for your current set up. 3 1/2" of lift it was going to be needed sooner or later.
So now i'm just seriously considering biting the bullet & getting a new front shaft. I didn't even have the thought of checking the rear when I was under there, but I will. Right after I saw this thread, I went on Amazon & ordered the TeraFlex Rzeppa CV kit since it seemed easy enough to do myself, but now i'm thinking the Tom Wood's might be the best solution. I guess all of us have to make this decision sooner or later right?
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Old 05-17-2019, 03:19 PM   #15
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Originally Posted by drummr25 View Post
Hey all. Was under my 2015 Rubi last weekend doing the diffs, trans-axle and manual tranny oil change when I noticed some grease that had been flung around the top. I have a 3-1/2" Metal Cloak lift with just over 60K miles. I don't know much about this, but I've read that the more extreme your axle drop is, the harder things are on it- and that I could expect this to happen eventually with any lift over about 2". What say you?
Thats a driveshaft, same thing happend to me. In my exp i just took mine off and ran without one till i saved up for an Adams. Just made sure and not put it in 4WD. No issues now.
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Old 05-17-2019, 03:20 PM   #16
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So now i'm just seriously considering biting the bullet & getting a new front shaft. I didn't even have the thought of checking the rear when I was under there, but I will. Right after I saw this thread, I went on Amazon & ordered the TeraFlex Rzeppa CV kit since it seemed easy enough to do myself, but now i'm thinking the Tom Wood's might be the best solution. I guess all of us have to make this decision sooner or later right?
Adams Driveshaft $475 shipped, holding up great after a year!
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Old 05-28-2019, 09:08 AM
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Just an update: I did end up removing the front shaft (was easier than I thought) and have decided to give the TeraFlex Rzeppa CV replacement kit a try since many said they've experienced good results. And for less than $160, why not. Obligatory pics of the old...
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Old 05-28-2019, 10:26 AM   #18
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I just replaced my rear driveshaft with an Adams and will be doing the front soon. I have read good and bad about repairing the Rzeppa joint. Some have done it and said no issues, some said the repaired joint only lasted a few months.... I didn't want to deal with it again so I just replaced the whole thing. Good luck on your repair...
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Old 05-28-2019, 10:59 AM
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I just replaced my rear driveshaft with an Adams and will be doing the front soon. I have read good and bad about repairing the Rzeppa joint. Some have done it and said no issues, some said the repaired joint only lasted a few months.... I didn't want to deal with it again so I just replaced the whole thing. Good luck on your repair...
Thanks- i'll let everyone know how it goes. Part of me trying this route was that vids made it look super easy to do for someone in their driveway with simple tools. Are the new shafts just direct bolt-ons as well, or is it much more involved? I seemed to remember seeing a YT vid of an aftermarket install at a shop on a lift where much more needed to be removed with special tools req'd and such. I figure at that point i'll just bring it in to a shop to do the work..
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Old 05-28-2019, 11:28 AM   #20
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Upgrade or roll the dice and take it to the dealer. That's part of your drivetrain warranty and I've had mine replaced as such, although you'll be back at this point again at some point.
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Old 05-28-2019, 11:40 AM   #21
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Upgrading a driveshaft is as easy as pulling and replacing one. The only "special" tool you need is a torque wrench capable of torquing the transfer case yoke in.
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Old 05-28-2019, 12:53 PM
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Upgrade or roll the dice and take it to the dealer. That's part of your drivetrain warranty and I've had mine replaced as such, although you'll be back at this point again at some point.
You think they'd still warranty that with the (non-Mopar) 3.5" lift?
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Old 05-28-2019, 01:07 PM   #23
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You think they'd still warranty that with the (non-Mopar) 3.5" lift?
I have a 3.5 metalcloak, 37's, etc. etc. Maybe I just got lucky, but they just did it when I went it to get my oil cooler fixed under warranty. I got it back and they said they saw my boot was torn and was leaking so they swapped it out.

me: "k thx."

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Old 05-28-2019, 01:16 PM
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I have a 3.5 metalcloak, 37's, etc. etc. Maybe I just got lucky, but they just did it when I went it to get my oil cooler fixed under warranty. I got it back and they said they saw my boot was torn and was leaking so they swapped it out.

me: "k thx."

That's pretty sweet!

So I still haven't taken mine in for the airbag recall...maybe I should just throw the driveshaft in the cargo area & be like "Can you just take care of that too?"
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Old 05-28-2019, 01:44 PM   #25
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You think they'd still warranty that with the (non-Mopar) 3.5" lift?
Totally depends on dealer, is their call to fix it under warranty or not and rightfully so can be denied, the lift caused the failure.

Most dealers won't do it under warranty 'cause they get more money from us and can overcharge and recommends other things to fix.

Dealers usually have contracts with manufacturers and can only charge a fix rate.
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Old 05-28-2019, 06:32 PM   #26
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Totally depends on dealer, is their call to fix it under warranty or not and rightfully so can be denied, the lift caused the failure.

Most dealers won't do it under warranty 'cause they get more money from us and can overcharge and recommends other things to fix.

Dealers usually have contracts with manufacturers and can only charge a fix rate.
Of course it depends on the dealer, but it won't hurt to have them look. That being said, I actually have an Adam's DS ready to go once this thing rips again.
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Old 06-13-2019, 07:40 AM
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Just an update for folks- after reading some other threads about some having serious vibration issues with a few aftermarket shafts, I just decided to install my TeraFlex Rzeppa kit when it came in the mail. Was easy enough to do, and I can detect no vibrations or anything else up to about 70mph so far. Who knows how long it will last, but for the occasional weekend warrior/daily driven rig with lifts over 2.5"...this seems like the easiest $$ spent. YMMV..

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