Non-Selectable Lockers
05-18-2015, 07:16 AM
#1
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Non-Selectable Lockers
Do non-selectable lockers cause faults with the jeep when used? I think I remember this being said recently, but only on the 2012 or newer models.
I was thinking of adding a true-trac or lunchbox locker to the front Dana 30 but i don't want to run into problems with the electronics.
I was thinking of adding a true-trac or lunchbox locker to the front Dana 30 but i don't want to run into problems with the electronics.
05-18-2015, 10:50 AM
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Rear axle, with automatic transmission, and auto-lockers. (lunchbox, detroit, etc).
No problems with auto-lockers up front, you shouldn't notice it until you shift into 4wd. And I haven't seen any issues with the truetrac l/s front or back.
No problems with auto-lockers up front, you shouldn't notice it until you shift into 4wd. And I haven't seen any issues with the truetrac l/s front or back.
05-18-2015, 06:07 PM
#4
Do non-selectable lockers cause faults with the jeep when used? I think I remember this being said recently, but only on the 2012 or newer models.
I was thinking of adding a true-trac or lunchbox locker to the front Dana 30 but i don't want to run into problems with the electronics.
I was thinking of adding a true-trac or lunchbox locker to the front Dana 30 but i don't want to run into problems with the electronics.
05-19-2015, 06:38 PM
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2014 Willy's, Detroit Soft Locker upfront and 37's. Not one issue. I've installed probably 15 auto lockers in '12+ Jk's and never had one issue with any of them. Michael @ Level 10
05-20-2015, 09:53 AM
#7
I curious because my buddy has a 2013 JKU and he wants to go to TT like I did, but after reading about the issues and going into Limpin mode, he's gun shy. Now instead of 850 dollars worth of TT for the F/R, he's looking at more expensive Air or E lockers.
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05-20-2015, 10:14 AM
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What about auto lockers or TT in the rear of 2012+ JK's with an auto? No issues there? I've seen where in some instances it causes the jeep to go into limp in mode. I know there is at least one thread on this forum, and I read about some of the same issues on thread at Wrangler forum too.
I curious because my buddy has a 2013 JKU and he wants to go to TT like I did, but after reading about the issues and going into Limpin mode, he's gun shy. Now instead of 850 dollars worth of TT for the F/R, he's looking at more expensive Air or E lockers.
I curious because my buddy has a 2013 JKU and he wants to go to TT like I did, but after reading about the issues and going into Limpin mode, he's gun shy. Now instead of 850 dollars worth of TT for the F/R, he's looking at more expensive Air or E lockers.
05-20-2015, 02:28 PM
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Auto-lockers in the 'Rear' axle of 2012+ with automatic transmissions.
So apparently a front locker would not trigger it. A rear truetrac would not trigger it. A manual trans would not trigger it. You would need an auto-locker in the rear axle, with an automatic transmission, in a 2012+ JK.
https://www.jk-forum.com/forums/modi...-260152/page2/
Two of the posts by the folks at Dynatrac...
And another thought is that, since that thread is a few years old, is it possible that there have been some computer updates from the factory that have fixed the issue?
So apparently a front locker would not trigger it. A rear truetrac would not trigger it. A manual trans would not trigger it. You would need an auto-locker in the rear axle, with an automatic transmission, in a 2012+ JK.
https://www.jk-forum.com/forums/modi...-260152/page2/
Two of the posts by the folks at Dynatrac...
I've done some checking and confirmed that this locker issue is only with auto trans equipped 2012-2013 JKs.
I did some checking and found that the new 12 auto trans computer is a bit more complex than previous models. While driving it monitors yaw, pitch, acceleration, vehicle speed, wheel speed etc. A Detroit Locker is always locked until traction on a corner allows the outside tire to unlock. When equal axle speed is achieved after the corner, the unit once again locks. It is suspected that the lock/unlock motion of the locker is tripping the computer. The ProCal is not able to compensate.
I did some checking and found that the new 12 auto trans computer is a bit more complex than previous models. While driving it monitors yaw, pitch, acceleration, vehicle speed, wheel speed etc. A Detroit Locker is always locked until traction on a corner allows the outside tire to unlock. When equal axle speed is achieved after the corner, the unit once again locks. It is suspected that the lock/unlock motion of the locker is tripping the computer. The ProCal is not able to compensate.
And another thought is that, since that thread is a few years old, is it possible that there have been some computer updates from the factory that have fixed the issue?
Last edited by nthinuf; 05-20-2015 at 02:32 PM.
05-20-2015, 02:53 PM
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There may have been some ECU updates. Not sure. The rear explains as why I've never seen an issue personally though. I won't install an auto locker in the rear. On the trail it has a tendency to push the front end and to a degree overcome the steering. Selectable or LSD only in the rear.
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