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Old January 21st, 2014, 09:33 AM   #1
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Default locker issue

i have a 05 wrangler unlimited dana 30 with tru trac locker up front. just a quick question, is there anyway a lunch box locker like that could cause the jeep to pull to the left when driving down the road in 2 wheel drive? i had a alignment done changed the caliper all components seem to be good.. was just wondering if that even possible for it to be causing my issue.
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Old January 21st, 2014, 09:50 AM   #2
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I don't know much about lockers, but it pulling in 2wd would seem to an issue with the 4x4 not disengaging. Maybe a front axle is hanging up or something?
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Old January 21st, 2014, 10:05 AM   #3
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First off, the tru trac isn't a locker it's a gear driven lsd. It doesn't sound like a locker issue to me, I'm assuming it does not do it in 4wd? You implied it but I figured that would be worth clarifying
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Old January 21st, 2014, 10:33 AM   #4
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well when its in 4wd it pushes all over on snowy roads its un drivable. and when its in dirt or somewhat dry terrain it feels like the front end is binding up almost like the front end is just welded together and makes these crazy tire tracks. I don't think the locker is disengaging at all when in 4wd. the when i shift it back to 2wd i have to stop put it in reverse tap the gas and you can here a faint click from the front end when it disengages then all is good other than the jeep pulls left in 2wd. so that was my question.. i know something is not right with the locker and wasn't sure if it could be causing my slight pull to the left if all parts check out.
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Old January 21st, 2014, 10:54 AM   #5
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I'd start by pulling the cover and seeing what you actually have and the shape it's in. You seem convinced you have a locker
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Old January 21st, 2014, 11:06 AM   #6
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Quote:
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I'd start by pulling the cover and seeing what you actually have and the shape it's in. You seem convinced you have a locker
I agree with above you may have a lunch box locker and it has issues I would never put one in the front of anything especially something without lockouts. I have a trutrac in the front with no driving issues don't know it their on road.
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Old January 21st, 2014, 11:14 AM   #7
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is a tru trac not a lunch box locker?
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Old January 21st, 2014, 11:16 AM   #8
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Check your tire pressure
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Old January 21st, 2014, 11:21 AM   #9
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Quote:
Originally Posted by Blakemore00XJ View Post
is a tru trac not a lunch box locker?

Like stated above, no it's not a lunchbox design or a locker
It is a full case gear to gear posi that is invisible on road and makes no noise
If you do have a lunchbox locker it could not be setup right
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Old January 21st, 2014, 12:54 PM   #10
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X500 a tru trac is almost invisible up front even with the CAD engaged.
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Old January 21st, 2014, 03:16 PM   #11
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X500 a tru trac is almost invisible up front even with the CAD engaged.

Mine is invisible on and off road lol
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Old January 21st, 2014, 03:30 PM   #12
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a TruTrac is a helical gear or worm gear design limited slip. You should not really notice it at all in 2wd. If you have a TT and the symptoms you describe, you likely have something very bad going on in there.

Remember that a limited slip will never lock up 50/50 like a locker does. Most limited slips will bias torque up to 30/70, and if you have zero resistance on one tire, the limited slip will act like an open carrier. Its the nature of the beast. Apply a little break pressure to ad resistance to the side that is spinning, and it should transfer some torque to the other side of the diff.

And this is even more the case with TruTracs, as Eaton sets the bias differently for front and rear applications. Fronts are less aggressive so they are more 'invisible' on-road.
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Old January 21st, 2014, 04:57 PM   #13
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What's in the rear axle? A full locker or spool in the rear with mismatched tire height will torque steer like a bitch and push the front end around like you describe.
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Old February 3rd, 2014, 08:30 AM   #14
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Maybe you have a couple problems going on or just one...
I had a lunch box in my front D30/06 Unlimited. In 2wd no problems. but engaged on a snowy covered highway I would feel it pull to the right on acceleration and when I let off it would pull to the left.(had a full Detroit in the rear if your asking) I lived with it/just saying.
With yours pulling in 2wd are you sure its not your tires/out of wack? A tire with bad belts or uneven wear, checkering, might cause it to pull left. Swap the backs to the front, easy enough to do to see if theres a difference.
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