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POWERTRAX Rear Locker (07-18 Jeep Wrangler JK)

Item J105921
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    Features & Details

    • Limited Slip Differential
    • Forged Steel Case
    • Uses 3x2 Spiral Gear Technology
    • Progressive and Variable Traction
    • Requires Bearing 25590 and Race 25523
    • Fully Assembled
    • For 2007-2018 Jeep Wrangler JK Models
    Maximize Your Off-Road Experience. For Jeep Wrangler drivers, your vehicle's power and traction output can make or break the off-roading experience. This POWERTRAX Rear Locker is a gear driven, limited slip differential, engineered for the utmost in strength and durability. This is a powerful solution for off-roading on the most extreme terrain and in the harshest conditions.

    Superior Traction Control. The POWERTRAX Rear Locker delivers progressive and variable traction, allowing you to control how much traction is applied in any given situation. This can vastly improve your driving experience in situations and conditions where extreme traction and a little extra finesse are required.

    Fully Assembled. The POWERTRAX Rear Locker comes fully assembled for your Jeep Wrangler JK. It's housed in a fully machined, forged steel Dana 44 case design. It uses 3x2 spiral gear technology and has a spline count of 30. It's dual drilled for 3/8-inch and 7/16-inch ring gear bolts. Note that this differential requires the use of bearing 25590 and race 25523.

    Application. The POWERTRAX Rear Locker is designed to fit 2007-2018 Jeep Wrangler JK models.

    Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

    MPN# GT434430

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Locker
    Installation Info
    Tech Specs

      Customer Photos

        Questions & Answers (6)

        5 Top Rated Questions

        will this work with 2013 and newer JK with automatic transmision? there are reports of mechanical lockers acting badly with the traction control and causing limp mode activation.

        • Yes, this is compatible with 2013+ JK models with automatic transmissions.

        Helpful (1)

        will this fit my jeep ring and pinion they are Yukon thick ring gear 4.88

        • These lockers are able to work with a 3.73 and numerically higher gear.

        Helpful (1)

        I am wondering how this compares to other limited slip units. how well does it function for everyday driving? can I get more information on specifically how it works. thank you

        • The POWERTRAX Rear Locker functions like any other limited slip. It will deliver different amounts of traction based on throttle input.

        Helpful (1)

        will this work with the 2013 and newer JK with the automatic transmission? there are articles reporting the mechanical lockers will mess with the traction controland cause the computer to go into limp mode.

        I see that another customer asked if this will fit with a Yukon 4.88 ring gear and the Extreme-Terrain answer was that it will "work with a 3.73 and numerically higher gear". This contradicts the Powertrax website that states it is a "3.73 Carrier and Lower". I called Powertrax spoke with tech support he stated it could only be used for 3.73 gears numerically lower. Anyway, this leaves me confused especially when none of the other brands of lockers appear to have a carrier split at 3.73 gears for a Jeep JK Dana 44 rear (but there is a split the Dana 30 front). Is there any confirmation of actually installing this limited slip with higher numerical gears in a JK rear?

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        1 More Question
        Where can I get the bearing 25590 and race 25523 1 answer

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