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Locker or LSD

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Old Aug 23, 2013 | 08:08 PM
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Default Locker or LSD

hey guys I've got a 2012 2-door sport that I've put the teraflex 3" prerunner kit on and 35's. i'm interested in hearing your thoughts on what you would do, considering most of my wheeling will be on sand is it worth forking out the extra cash and getting Lockers or should i just get LSD's front and rear? i just don't want to make a choice and then regret it.
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Old Aug 23, 2013 | 08:20 PM
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A pair of truetracs.
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Old Aug 23, 2013 | 08:41 PM
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I had this same dilemma not long ago. I went with ARB front and rear. I really wanted a rear LSD and front Air locker, my primary reason for the rear LSD is I have the stock LSD from Chrysler it is good and really great in the snow, but wears out kind of quick due to being clutch driven. That is where the Tru Trac is nice as it has no clutches and can handle up to 37" tires. I cant speak for LSD in the front but I will tell you with an LSD in the rear it was a real pain to turn while on the trails put on in the front you will have to make really wide turns, may even have to come out of 4wd and on the trail that could hold you back.

Also LSD in the front is not good in the snow, even in 2wd as daily driving it is not good. I really do not see any benefit out of a LSD in the front I would defiantly say selectable that way you can keep your turning radius.

My though on the perfect setup would be LSD in the rear Selectable in the front. But I got talked into selectable front and rear due to false information about the TruTrac was informed that 35" or larger tires would cause premature failure but I called Eaton and talked to a tech he said you can run up to 37" all day everyday with not premature failure or un normal wear. had I know this when I was ordering parts I would have ran LSD rear Selectable up font. There were times on the trail that the LSD did hinder me at time especially when I needed to make a tight turn but I loved it anyway as it was always there when I needed it.

Rear LSD Open front-




How she looks at this very moment. That is mine in the background on the lift getting new gears, Lockers, and of course the truss.

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Old Aug 23, 2013 | 09:04 PM
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I agree with a selectable locker in front. As for the rear depends on what trails you run on whether you go with LSD or locker. I personally like having a locker as the Jeeps abs controls spin when in open mode anyway.
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Old Aug 23, 2013 | 09:32 PM
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Some of the info above may be a bit incorrect. I ran a front truetrac for over 10 years. Had no problems with the truetrac through colorado winters (much more user friendly than the detroit it replaced), and no issues with turning on the trails (other than the long wheelbase of a dodge ram with a locked rear end). After blowing up the rear detroit locker, I replaced with a second truetrac and --> had no problems through colorado winters, and no issues with turning on the trails.

From what I have read, clutch based limiteds will give more issues on snow/ice than the gear driven truetrac. I've never driven with a clutch unit, so don't know, but I highly recommend the truetrac.




But more importantly - if all you are doing is sand, do you really need thousand dollar selectables?
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Old Aug 24, 2013 | 04:09 AM
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Just an FYI... If you have an Auto and do choose a locker it will have to be a selectable in both the front and the rear, you cannot run a Detroit in 2012 and newer JK with Auto trans because they have a yaw sensor that puts the Jeep in limp mode on your first turn.
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Old Aug 24, 2013 | 04:55 AM
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Originally Posted by mblue
I cant speak for LSD in the front but I will tell you with an LSD in the rear it was a real pain to turn while on the trails put on in the front you will have to make really wide turns, may even have to come out of 4wd and on the trail that could hold you back.

Also LSD in the front is not good in the snow, even in 2wd as daily driving it is not good. I really do not see any benefit out of a LSD in the front I would defiantly say selectable that way you can keep your turning radius.
Ummm, you might want to actually have some experience with a front LSD before you make statements like these, since both are false. I've been running front and rear True Tracs on the Jk since Feb and clutch tupe LSDs front and rear on a full size Bronco since the mid 90's and have never seen problems with turning radius, daily driving, or running it on snow covered roads.

For the OP a set of true tracs will work well for your needs, there's no reason for the expense of selectable lockers in your situation.

Last edited by slider_68; Aug 24, 2013 at 05:42 AM.
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Old Aug 24, 2013 | 05:07 AM
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Because your running 35's and could get into some harder offroad stuff, having at least one locker might be good for your needs.

Last edited by horrocks007; Aug 24, 2013 at 05:16 AM.
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Old Aug 24, 2013 | 05:45 AM
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Originally Posted by nthinuf
Some of the info above may be a bit incorrect. I ran a front truetrac for over 10 years. Had no problems with the truetrac through colorado winters (much more user friendly than the detroit it replaced), and no issues with turning on the trails (other than the long wheelbase of a dodge ram with a locked rear end). After blowing up the rear detroit locker, I replaced with a second truetrac and --> had no problems through colorado winters, and no issues with turning on the trails.

From what I have read, clutch based limiteds will give more issues on snow/ice than the gear driven truetrac. I've never driven with a clutch unit, so don't know, but I highly recommend the truetrac.




But more importantly - if all you are doing is sand, do you really need thousand dollar selectables?
The Tu- Tracs sounds like they have a much better torque bias than in the past. I used one back in the late 80's and would have to use my brake a lot to keep from losing a wheel. I ended up running two Detoit Lockers and it was the best combination at the time for me. My truck at the time would lift a wheel often compared to these coil spring Jeeps. Tru -Tac sounds like a good solution!
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Old Aug 24, 2013 | 06:06 AM
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From what I understand they do, even higher in the ones for front axle applications, add in the way the BDL works and its a great setup for those who really don't need lockers. But want a little more than open diffs
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