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Old 08-26-2013, 07:23 PM   #1
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Rubi lockers only in 4wd LOW range

Am currently researching before buying my first Wrangler. I have read that the locking diffs in the Rubicon will only work in 4wd Low. I realize that this is a safety feature, but am wondering if it very often is a disadvantage. I've owned many 4x4 vehicles, but never had this restriction. Opinions please on the pros and cons of this feature.
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Old 08-26-2013, 07:25 PM   #2
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Don't have a Rubi but my last vehicle was a Toyota FJ and it worked the same way. Locking diffs only in 4-Lo. Worked great.

I never realized this was abnormal.

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Old 08-26-2013, 07:28 PM   #3
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Don't brake lockers work in 2-wheel and 4-high? I'm assuming that if the Sport has that feature the Rubicon does too?
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Old 08-26-2013, 07:30 PM   #4
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Only 4-low locks in four runner too. Loved it
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Old 08-26-2013, 07:31 PM   #5
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LOVE this feature in my rubi too!!
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Old 08-26-2013, 07:33 PM   #6
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Quote:
Originally Posted by Kevinsmith5 View Post
Don't brake lockers work in 2-wheel and 4-high? I'm assuming that if the Sport has that feature the Rubicon does too?
He is referring to the axel lock option which is Rubicon only, not BLD.

Although not highly advised by some it is possible to "enable" through wiring lockers in 4 hi.
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Old 08-26-2013, 07:37 PM   #7
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Quote:
Originally Posted by Kevinsmith5 View Post
Don't brake lockers work in 2-wheel and 4-high? I'm assuming that if the Sport has that feature the Rubicon does too?
The BLD feature would be helpful in many cases. But it doesn't compare to real lockers in many offroad situations. Thanks.
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Old 08-26-2013, 07:39 PM   #8
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Lockers in 4wd high are fine for people who have expertise in when and when not to use them. Rubicons are sometimes purchased by novices who have never experienced them and would be inclined to use them when contra-indicated.

Liability concerns hamper a lot of what automakers do and offer.
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Old 08-26-2013, 07:42 PM   #9
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My point was that on a Rubi you'll have the BLD in 4-high and the true lockers in 4-low.
Aren't the lockers available only in low because driving any real distance because driving for an extended distance locked is hard on mechanical parts and wears on the tires?
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Old 08-26-2013, 07:48 PM   #10
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Quote:
Originally Posted by twarner776 View Post
He is referring to the axel lock option which is Rubicon only, not BLD.

Although not highly advised by some it is possible to "enable" through wiring lockers in 4 hi.
Good to know that workaround is available.......though not from the dealer, I am sure.
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Old 08-26-2013, 07:50 PM   #11
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Lockers used in a turn could prove fatal to novice drivers when the vehicle does not act as expected. The drivetrain and tires have no effect on the decision.
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Old 08-26-2013, 08:06 PM   #12
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Below is article on how to by pass the locker switch to allow them to be activated outside of 4lo:

ROCKCRAWLER.com - Jeep Rubicon Locker Bypass
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Old 08-26-2013, 08:47 PM   #13
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Quote:
Originally Posted by 13rian View Post
Below is article on how to by pass the locker switch to allow them to be activated outside of 4lo:

ROCKCRAWLER.com - Jeep Rubicon Locker Bypass
Good link....thanks. I printed it out for possible future use.....at my own risk.
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Old 08-26-2013, 08:52 PM   #14
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people actually use 4 hi?
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Old 08-26-2013, 08:56 PM   #15
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Not too many situations where you would need 4WH and lockers. I can see using it in mud where you would want wheel speed. Keep in mind when both are locked in your going to have a hard time steering it not to mention with more speed its going to push where it wants to go. Think about it. If its bad enough you need locked in then you should be going slow anyway.
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Old 08-26-2013, 08:57 PM   #16
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Quote:
Originally Posted by Tweak View Post
people actually use 4 hi?
Comes in real handy in the winter.
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Old 08-26-2013, 08:57 PM   #17
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Quote:
Originally Posted by 13rian View Post
Below is article on how to by pass the locker switch to allow them to be activated outside of 4lo:

ROCKCRAWLER.com - Jeep Rubicon Locker Bypass

Do you know if this article is applicable to JK rubi's? I did this to my '04 and liked it..
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Old 08-26-2013, 08:59 PM   #18
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Quote:
Originally Posted by ohioviper View Post
Comes in real handy in the winter.
ha yea. dont get much of that here. I'm sure you would say otherwise!
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Old 08-26-2013, 08:59 PM   #19
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Quote:
Originally Posted by ohioviper View Post
Comes in real handy in the winter.



X2!!!!!!
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Old 08-26-2013, 09:06 PM   #20
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Quote:
Originally Posted by Tweak View Post
people actually use 4 hi?
People use 4 lo... Mud and sand like 4 hi better.
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Old 08-26-2013, 09:09 PM   #21
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Quote:
Originally Posted by Tweak View Post
ha yea. dont get much of that here. I'm sure you would say otherwise!
Toss in some mountains and try it in 2 wheel.
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Old 08-26-2013, 09:27 PM   #22
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Most electric lockers create a "solid axle". So the left and right wheel are forced to turn at the same speed. The differentials can't differentiate.

Simply stating, that means you cannot turn a corner when locked (where the outside wheel must travel faster).

So it's a safety hazard for novices.
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Old 08-26-2013, 09:38 PM   #23
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a rear locker in 2 wd (rear of course) is pretty useful - that has gotten me out of more problems than 4 wd ever has.
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Old 08-27-2013, 08:40 AM   #24
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Will the computer see that the lockers were bypassed on the newer models? I been doing research on this subject and it seems the lockers will disengage around 30 mph if you use a programmer. I hear they void your drivetrain warranty if you reprogram (please don't flame the warranty comment). I'm looking for a safe the safest way to engage lockers in 4hi and 2 hi but I haven't come across anyone that has done this on a newer model. I have a 2013 JKUR... So if anyone has experience with modding stock lockers via hardwire (bypass switch) could you weigh in here or send me a pm, that would be appreciated.
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Old 08-27-2013, 08:52 AM   #25
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In what situations would lockers be used in 4Hi? I could actually see 2Hi being used before 4Hi.
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Old 08-27-2013, 09:00 AM   #26
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Running through a long run of snow or mud where you don't need to drop it into 4L.

4L on a 4.10 rubi with the 4:1 t-case winds out at a pretty low mph.

I've installed electronic lockers on other 4wds with dash switches to instantly engage them when necessary.

I can see why the factory doesn't allow it (largely to prevent novices from wrecking by engaging them on road), but a skilled off-roader can certainly use it.
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Old 08-27-2013, 09:04 AM   #27
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Quote:
Originally Posted by FXnut View Post
Do you know if this article is applicable to JK rubi's? I did this to my '04 and liked it..
You can do it on a JK as well. Here is a PDF of the wiring diagram of the Rubicon lockers on a JK:





Another link to a wiring diagram:

http://www.trailduty.com/temp/lockers/lockers.pdf

Lastly, link to You tube video:




Sorry did a bunch of edits on this post :-)
Attached Files
File Type: pdf Locker Diagram.pdf (174.0 KB, 93 views)
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Old 08-27-2013, 09:26 AM   #28
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Thanks 13rian.. Do you know if there is a write up anywhere on this?
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Old 08-27-2013, 09:28 AM   #29
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Are there any CONs to doing a manual switch? Like do you lose any features?
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Old 08-27-2013, 09:45 AM   #30
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Quote:
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Are there any CONs to doing a manual switch? Like do you lose any features?
Probably depends on method used but shouldn't remove any capability. Just, as pointed out, potentially damaging if used unwisely and another item for a dealer to disallow warranty work.

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