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  #1  
Old 08-17-2015, 11:45 AM
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Auburn Gear LSD for WK2

There is a LSD available for the WK2's from AuburnGear.

Blog - 9-1/4 Limited-Slip Differential Press Release | Auburn Gear Aftermarket

So far this looks to be the only upgrade for us QT2 or QT1 owners. Has anyone installed one or looked into this option?

I was wondering if a check engine light would appear and how it may effect the auto-braking power transfer feature on the QT2

http://www.summitracing.com/int/part...0142/overview/

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  #2  
Old 08-17-2015, 08:46 PM
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Re: Auburn Gear LSD for WK2

Very cool, I could not find reviews so waiting for someone to chime in here, cost looks around $900.
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Old 08-17-2015, 09:57 PM
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Re: Auburn Gear LSD for WK2

Quote:
Originally Posted by 68camaro View Post
Very cool, I could not find reviews so waiting for someone to chime in here, cost looks around $900.
My 2nd link above brings you to Summit-Auto - $659 on their site. Will still need bearings, seals? and some labor costs unless you can do yourself. So yeah, about a grand for the install.
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Old 08-18-2015, 12:55 AM
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Auburn Gear LSD for WK2

Id love to put a limited slip front diff in my QD someday if the electronics played nice.
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Old 08-18-2015, 02:11 AM
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Re: Auburn Gear LSD for WK2

Being a torque biasing design you would think it would complement the brake traction control. Any braking force on the spinning tyre would be multiplied.
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Old 08-18-2015, 11:22 AM
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Re: Auburn Gear LSD for WK2

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Originally Posted by farfromovin View Post
Id love to put a limited slip front diff in my QD someday if the electronics played nice.
How would an LSD on the front effect handling?

My concern would be torque bias as in where you would feel your steering wheel get jerked in your hands, similar to what you feel on front drive cars with LSD's.

For the front I would think an electronic or air locker type of Diff that can be engaged when needed for off road would be better!
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Old 08-18-2015, 11:45 AM
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Re: Auburn Gear LSD for WK2

I just sent the following e-mail to AuburnGear - I'll post the answer when I get it

---------------------------------------------------

Hi Justin


I would like to get a little more info on this LSD.


In particular, I have a 2014 Jeep Grand Cherokee with Quadra-Trac 2 (QT2) Limited V6 model with the Off Road Adventure 2 package.


The QT2 models come with a brake lock differential. If the OEM Diff were replaced with your new ZF Diff, would this cause a check engine light. Has your ZF Diff been tested in a Jeep with the QT2 4x4 system and if so what were the results?


Also, could this Diff be installed on the front?


Lastly and unrelated: Is AuburnGear working on a ECTED Diff for the new Jeeps?

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Old 08-19-2015, 07:17 PM
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Re: Auburn Gear LSD for WK2

Quote:
Originally Posted by cherokee-gym View Post
I just sent the following e-mail to AuburnGear - I'll post the answer when I get it

---------------------------------------------------

Hi Justin


I would like to get a little more info on this LSD.


In particular, I have a 2014 Jeep Grand Cherokee with Quadra-Trac 2 (QT2) Limited V6 model with the Off Road Adventure 2 package.


The QT2 models come with a brake lock differential. If the OEM Diff were replaced with your new ZF Diff, would this cause a check engine light. Has your ZF Diff been tested in a Jeep with the QT2 4x4 system and if so what were the results?


Also, could this Diff be installed on the front?


Lastly and unrelated: Is AuburnGear working on a ECTED Diff for the new Jeeps?

---------------------------------
I thought the only choice was the electric rear diff or the open? What's this brake lock diff your talking about?
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Old 08-19-2015, 10:22 PM
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Re: Auburn Gear LSD for WK2

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Originally Posted by JoeD View Post
I thought the only choice was the electric rear diff or the open? What's this brake lock diff your talking about?
QT2 brakes the spinning wheel sending power to the wheel with grip, not as good as a locking diff but better than open diff with no braking.
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Old 08-22-2015, 02:18 AM
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Re: Auburn Gear LSD for WK2

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Old 08-23-2015, 08:12 AM
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Re: Auburn Gear LSD for WK2

Quote:
Originally Posted by indydof View Post
QT2 brakes the spinning wheel sending power to the wheel with grip, not as good as a locking diff but better than open diff with no braking.
That's what I thought, it's just a standard open differential.
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Old 08-23-2015, 09:09 AM
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Re: Auburn Gear LSD for WK2

QD in the WJ's use a NV245 QTII transfer case with front and rear Vari-Lok axles. The transfer case and both differentials had gerotor pumps. It splits engine torque front to rear and side to side. IMO, this was the best 4WD system I ever had... totally seamless operation and no crow hopping when turning.

QDII in the WK's use a NV247 QTII transfer case with front and rear ELSD axles. I never owned a WK so I can't compare it's operation against the WJ system. I assume it still splits engine torque the same.

QDII in the WK2's use a MP3023 QTII transfer case with or without a rear ELSD axle. Jeep eliminated the front LSD and relies on the drivetrain control module (DTCM) and software algorithms to measure wheel speed and slippage. Engine torque is split front to rear by the transfer case and the traction control system applies braking to the wheel(s) with the most slip.

The question I'd have about the Auburn LSD... is it being designed to integrate with the WK2's DTCM and traction control system? If not, I'd have to wonder how well it works independent of that and what issues would it present with the GC's electronics and software.
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