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Old 08-24-2018, 09:38 PM
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Rubicon Rear Locker Sticking On

Hi all. Have a 2014 JKRU approximately 84k miles. Doubt the previous owner ever took it off road. Made sure the lockers turned on and off when I bought it. Since then I changed the diff fluid and took it off road. And the rear locker stuck on. Attempted the screwdriver through the diff cover but was not able to get an angle that allowed me to even touch the plate. Fast forward to today. I have the diff open. Was able to gently pry the plate with even pressure and it popped over. Hit the whole housing with break cleaner. So I tried testing the locker. It will turn on, but not off if it fully engages. To get it to fully engage you must move a wheel then it will click and seat. Turn it off and no movement, pry ever so slightly and it will spring back to unlocked.

Not sure what I can do about it. Any Ideas?

It is currently sitting covered in my garage so nothing crawls in there.

PS: I also snagged a Poison spider bombshell diff cover since I was opening it. Added bonus, it looks like it will let me pry the plate if I have to.

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Old 08-26-2018, 11:16 AM
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Ended up just cleaning out everything I could. Installed new cover. If it sticks again at least the plate is in reach to pop it over via the fill hole. For reference the poison spider fill hole is at OEM height so refilling is like with a stock cover. If it keeps acting up I will swap it out for an ox locker when I regear.

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Old 08-26-2018, 12:02 PM   #3
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For reference the poison spider fill hole is at OEM height so refilling is like with a stock cover.
One of the reasons I love mine. And they're virtually indestructible.


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Originally Posted by fuzzylogic_y2k View Post
If it keeps acting up I will swap it out for an ox locker when I regear.
Sounds like a good plan.
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Old 08-26-2018, 12:13 PM   #4
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Take it in 2014 have 5/100000 drivetrain warranty.
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Old 08-26-2018, 01:07 PM
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Take it in 2014 have 5/100000 drivetrain warranty.
I am not the original owner, pretty sure that would not apply to me.
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Old 08-26-2018, 02:00 PM   #6
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warranty follows vehicle not owner, so unless it is a salvage title it will cover it. Not telling you what to do just trying to save you some grief.
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Old 08-26-2018, 02:16 PM   #7
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I was the 3rd owner of my 2016 JKUR. My problem was the opposite of yours: I couldn't engage the locker most of the time. at 40,000 miles, the dealer fixed it under warranty. They ended up replacing the whole unit. Free. The warranty follows the vehicle.
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Old 08-26-2018, 02:19 PM
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warranty follows vehicle not owner, so unless it is a salvage title it will cover it. Not telling you what to do just trying to save you some grief.
Thanks, that was awesome info!
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Old 08-26-2018, 04:35 PM   #9
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One thing to try is hit the unlock button and back up a bit, see if that helps.
I'm sure you probably already know this, If they are on a hard surface, sometimes they will bind up. Just something to try
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Old 08-26-2018, 09:18 PM
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One thing to try is hit the unlock button and back up a bit, see if that helps.
I'm sure you probably already know this, If they are on a hard surface, sometimes they will bind up. Just something to try
Tried everything, shaking, tapping, loose dirt, figure 8's, reverse figure 8s. OEM cover did not allow access to pop the plate so I pulled it. Not my daily driver so I'll try it in the dirt tomorrow and if it does not unlock it will go to the dealer. Checking the history, it was first titled in December 2014 so I should have an entire year left or 15k miles. The hole in the wall dealership I found it at said it had no manufacturer warranty left. But thanks to random strangers on the internet I have learned otherwise!
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Old 08-27-2018, 06:52 AM   #11
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Yep - 14 was the last year of 5/100,000.
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Old 08-27-2018, 07:24 AM   #12
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Ended up just cleaning out everything I could. Installed new cover. If it sticks again at least the plate is in reach to pop it over via the fill hole. For reference the poison spider fill hole is at OEM height so refilling is like with a stock cover. If it keeps acting up I will swap it out for an ox locker when I regear.
Actually the PS diff cover fill hole sits a few inches higher than the stock fill hole. If you fill it up to that hole you are overfilling it and it will possibly either blow a seal or come out the vent tube. Ask me how I know
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Old 08-27-2018, 07:36 AM   #13
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I would leave stock one on until warranty is taken care of.
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Old 08-27-2018, 08:32 AM   #14
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Definitely worth a trip to the dealer. Should be covered under warranty.
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Old 08-28-2018, 11:18 PM   #15
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Actually the PS diff cover fill hole sits a few inches higher than the stock fill hole. If you fill it up to that hole you are overfilling it and it will possibly either blow a seal or come out the vent tube. Ask me how I know
They make a new cover that the hole is lower. However on my front diff it blew out oil through the vents on the freeway until it was about 3/4 of a inch below
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Old 08-29-2018, 12:00 AM
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Actually the PS diff cover fill hole sits a few inches higher than the stock fill hole. If you fill it up to that hole you are overfilling it and it will possibly either blow a seal or come out the vent tube. Ask me how I know
I must have a new style. I drained everything out of the rear. Even tilted the axle both ways to be sure. Put in 2 quarts no problem. At about 2.2 it spit some out so I waited 5 min and added a little more till it spilled again. I am quite confident there is 2.3 or pretty damn close in there at stock height. Have had no eruption from the tubes. Care to compare pics?
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Old 08-30-2018, 07:11 AM   #17
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Quote:
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Actually the PS diff cover fill hole sits a few inches higher than the stock fill hole. If you fill it up to that hole you are overfilling it and it will possibly either blow a seal or come out the vent tube. Ask me how I know
I must have a new style. I drained everything out of the rear. Even tilted the axle both ways to be sure. Put in 2 quarts no problem. At about 2.2 it spit some out so I waited 5 min and added a little more till it spilled again. I am quite confident there is 2.3 or pretty damn close in there at stock height. Have had no eruption from the tubes. Care to compare pics?
This cover is about 4 years old. If they moved the hole lower in the new one that’s good on them
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Old 08-30-2018, 07:12 AM   #18
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Not sure if the pic loaded
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Old 08-30-2018, 10:34 AM
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Not sure if the pic loaded
Yup, they definitely moved it down, and over. In my pic you can see the easy access to the locker plate.
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Old 08-30-2018, 10:59 AM   #20
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Yup, they definitely moved it down, and over. In my pic you can see the easy access to the locker plate.
Yes, I believe this was the redesign to allow better clearance for aftermarket track bars.

Per my notes it takes 1.75 qt in front, 2.3 qt in the rear.

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Old 08-31-2018, 07:18 AM   #21
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Yep - 14 was the last year of 5/100,000.
My 2015 Wrangler HR has the same coverage. 5years/ 100,000 miles

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