Real world axle shaft breakage - JKowners.com : Jeep Wrangler JK Forum
View Poll Results: Real world broken axle shafts
Still running stock dana 30 front 6 17.14%
Still running stock dana 44 front 12 34.29%
broken 1 or more front dana 30 stock shafts 3 8.57%
broken 1 or more front dana 44 stock shafts 3 8.57%
broken rear dana 44 3 8.57%
never, replaced with RCV because the internet told me to 4 11.43%
never, replaced with Dana 60 1 2.86%
never, the mall is my safe place 3 8.57%
Voters: 35. You may not vote on this poll

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post #1 of 28 Old 03-22-2017, 02:46 PM Thread Starter
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Real world axle shaft breakage

I am dying to know how many people have actually broken an axle shaft on the trail and how many just fall the the hype one must replace perfectly good shafts with RCV, ten factory, etc because they read it on the internet this must be done?

I still have stock shafts from 2007 in my Rubicon and it is not a trailer queen or mall crawler yet I receive more crap both on the forums and at the trial head for my so called 'stock' dana 44s.


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post #2 of 28 Old 03-22-2017, 02:51 PM
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I've seen a decent amount of worn joints and a break while out wheeling with stock axle shafts. I've also seen in a local shop a pile of JK rear shafts that were either broken or twisted. I'm sure it just depends on how and where you wheel. Like I have a leaking tube seal so I took it upon myself to upgrade to a nitro shaft and when I bought my proRock 44 I did TEN Factories because why not. They are beefy

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post #3 of 28 Old 03-22-2017, 02:54 PM Thread Starter
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You are correct, wheeling style and use of the right foot has a lot to do with it. If I break something, then I consider the upgrade but also the fallout...i.e. what is going to happen to the adjacent part?
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post #4 of 28 Old 03-22-2017, 04:01 PM
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I got RCV's to replace my "that u-joint isn't built anymore", front shafts. They were the only thing in stock, in the area and they were $200 more than factory shafts. OH, it was Labor Day weekend as well.
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post #5 of 28 Old 03-22-2017, 04:01 PM
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Quote:
Originally Posted by Rubi-8 View Post
You are correct, wheeling style and use of the right foot has a lot to do with it. If I break something, then I consider the upgrade but also the fallout...i.e. what is going to happen to the adjacent part?
That's exactly why I chose the Ten Factory over the RCV. Besides being cheaper I can replace a broken u joint or snapped shaft. I can't do gears. With RCV it's generally the R&P that takes the blunt of it. Especially with 1350 drive shaft. As you said. It's all about the adjacent part (weakest link)

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post #6 of 28 Old 03-22-2017, 04:32 PM
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Real world axle shaft breakage


I've owned my Jeep since 2014 and have broken a total of 3 shafts including this one. All were driver side, the first 2 broke due to the caps falling out while driving. That destroyed the stub and ball joint. My latest one happened last Sunday. Here's the shaft I broke. Tire got wedged in a little under cut and when I tried to reverse it blew up. Easy on the pedal and not bouncing as I was not on a obstacle.


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post #7 of 28 Old 03-22-2017, 05:34 PM
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Quote:
Originally Posted by Rubi-8 View Post
You are correct, wheeling style and use of the right foot has a lot to do with it. If I break something, then I consider the upgrade but also the fallout...i.e. what is going to happen to the adjacent part?
somebody mentioned undercuts; undercuts,undercuts it seems like its always an undercut that you hear-of or have seen - as I have- causing someone's Spicer to kablooee,subsequently taking-out other stuff .
I got a good deal on RCVs , told myself it was insurance due to the fact that I wheel alone. Now, turning into or under something is not nearly as caution inducing as it was previously , fwtw
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post #8 of 28 Old 03-22-2017, 06:01 PM
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Broken rear rubi axle shaft on 37's and also a front dana 60 shaft on 40's which is not on your list. Both with 5.103 gears.

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post #9 of 28 Old 03-22-2017, 06:49 PM
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tire size should be included also.
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post #10 of 28 Old 03-22-2017, 07:18 PM
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I snapped both my stock front shafts and have bent 4 rear flanges. I have chromolys in the front now that have withstood 4 or 5 r/p sets.


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post #11 of 28 Old 03-22-2017, 07:36 PM
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Invalid poll. No Bacon option.

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post #12 of 28 Old 03-22-2017, 07:38 PM
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I'm running 315/70/17 tires and I like to and have run some pretty tough trails here in Az. Now let's say I move to a set of chromoly shafts. Does that now create a new weak point in my drivetrain?


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post #13 of 28 Old 03-23-2017, 06:46 AM
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Quote:
Originally Posted by 1eviljk View Post
I'm running 315/70/17 tires and I like to and have run some pretty tough trails here in Az. Now let's say I move to a set of chromoly shafts. Does that now create a new weak point in my drivetrain?


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Probably your driveshafts if they are still stock. Then it also depends on your axles, what gears you're running and probably some other variables that I'm not considering. I'm sure someone else will chime in

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post #14 of 28 Old 03-23-2017, 07:30 AM
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RCV's were a Christmas present one year, it would have been a shame to leave them in the box. I have twisted the splines on my ten factory rear driver shaft though.

Running 37's and lots of rocks.

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post #15 of 28 Old 03-23-2017, 07:45 AM Thread Starter
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I am trying to find the article where chromoly axle shafts were in a comparison; ten factory was rated the lowest and not much better than stock.


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post #16 of 28 Old 03-23-2017, 08:45 AM
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Drive lines are Oem and Gear rattio is 5:38s. Im easy on the pedal and I play in the rocks. I've seen some guys here locally blowing up ring and pinions on stock jeeps with 33s. Driving style is a big factor.
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post #17 of 28 Old 03-23-2017, 10:28 AM
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Quote:
Originally Posted by 1eviljk View Post
Drive lines are Oem and Gear rattio is 5:38s. Im easy on the pedal and I play in the rocks. I've seen some guys here locally blowing up ring and pinions on stock jeeps with 33s. Driving style is a big factor.
5.38's for 35's? Is this a 30 or a 44? A 3.8 or a 3.6? I'm just curious

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post #18 of 28 Old 03-23-2017, 11:00 AM
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Dana 44's front and rear paired with a very tired 3.8 with auto trans. Does well on the streets as well as the highway.

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5.38's for 35's? Is this a 30 or a 44? A 3.8 or a 3.6? I'm just curious

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post #19 of 28 Old 03-23-2017, 11:01 AM
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Ive broken 3 front chromoly D30 shafts on 37's.
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post #20 of 28 Old 03-23-2017, 11:01 AM
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Ouch!


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post #21 of 28 Old 03-23-2017, 12:09 PM
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Quote:
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Ive broken 3 front chromoly D30 shafts on 37's.


I'm guessing yes, but do they have full circle clips?


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post #22 of 28 Old 03-25-2017, 05:03 PM
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Quote:
Originally Posted by thedirtman View Post
Broken rear rubi axle shaft on 37's and also a front dana 60 shaft on 40's which is not on your list. Both with 5.103 gears.
Didn't you twist splines one time too?
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post #23 of 28 Old 03-25-2017, 08:57 PM
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I think you are right, can't remember if it was a rubi axle or just the standard 44, must have been a rubi axle on 37's

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post #24 of 28 Old 03-26-2017, 09:07 AM
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Broken front RCV - passenger side Rubi D44, JKU with 37" Nitto's @ 10psi.
Stripped the splines at the bell/wheel end of the long axle shaft where it enters the CV.

Something had to give...I was reversing uphill at close to full lock, out of a rock pile and didn't realize my rear driver shock mount was hard against a big pointy rock
I waasn't bouncing, just progressively adding a bit more throttle each time waiting for the rear tire to climb. Never happened!
I'm guessing the front passenger tire had plenty of traction

RCV were awesome and sent me a new one and a rebuild kit within a few days!!
Got it installed and wheeled it a little down at King of the Hammers without incident.

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post #25 of 28 Old 03-28-2017, 10:41 AM
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2007 JKU 6 speed D30/D44 with 4.88s running a 325/80R16 tire, measures in at 36.25 inches at 28 psi with the full weight of the jeep on it. Aussie Locker up front Detroit locker in the rear, running stock D30 shafts, trussed, gusseted, sleeved D30 with riddler covers and have not broke anything. ten factory chromoly rear shafts only put in only because it was time to do rear bearings. 86,000 miles total, about 65,000 of which have had this setup, It has been on trails in AZ, CA, TX, NM, CO, MI, and IN. I am not by any means a speed demon and go extremely easy on the skinny pedal under the belief that I am driving a ticking time bomb, yet it has yet to explode.....
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