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Eaton Detroit Truetrac Differential Dana 44 30 Spline 3.73 and Down

MODEL # EAT913A589

$649.99


  • Q: Dana 44 Jeep JK  Roger D2 years ago

    I am planning to re-gear a 2008 JK Sahara rear diff to 5.13 will this locker work?
  • Q: 2016 jeep wrangler jku 3.6L automatic transmission  Adrian.Vichot3 years ago

    I jave a 2016 jeep wrangler jku automatic transmission and i am currently building a new custom front axle with a dynatrac pro rock 44. will this locker fit in the front dyantrac pro rock 44 regearing to 4.88? and will it fit the rear OEM dana 44 in the rear? in other words will this particular locker fit in the front and rear axles?
    • 0 of 0 people found the following answer helpful

      A:  Yes, this locker will work for you in a Pro Rock 44 and your factory rear. Keep in mind, you'll need 30 spline axle shafts for the front.

      Northridge Chris @ Northridge4x4 3 years ago  
        
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  • Q: 2017 Jeep JKU Automatic and Truetrac on Rear  Grendel6023 years ago

    My installer purchased this truetrac from you and installed on the rear of my 2017 auto JKU sport. I'm getting random ESP lights that won't turn off unless I cycle power. Is this compatible with auto trans? I see you say yes in other questions but the quadratec website specifically says not compatible. I'm confused.
    • 0 of 0 people found the following answer helpful

      A:  This will 100% work for your application. We have installed dozens of these without issue. Did you recalibrate if you changed gear ratio? Another possibility is if one of the ABS sensors was messed up during install?

      Northridge Chris @ Northridge4x4 3 years ago  
        
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  • Q: Truetrac axle  True track3 years ago

    Will stock 2017 JK Sahara axles work with the 44 and the 30.
  • Q: 2017 JK   True track3 years ago

    I have a 2017 JK Sahara with automatic 3.21 differential. I want to change to Yukon 4.88, Will this work. I’ve heard you cannot use with automatic transmission.
    • 1 of 1 people found the following answer helpful

      A:  The Eaton Truetrac won't cause any issues in your Jeep. Going to the 4.88 gear set from stock, you will need a programmer such as the AEV Procal to calibrate the computer to the correct gear set.

      Northridge Chris @ Northridge4x4 3 years ago  
        
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  • Q: 2018 JLU Sport S  Red 2018 4D3 years ago

    Double checked vin # and the rear axle is a 3rd gen Dana 44 HD. Will this Truetrac fit and are the stock rear axles a 30 spline? Plan to re-gear 3.45 to 4.88. Thanks.
    • 0 of 0 people found the following answer helpful

      A:  This will not work in the rear of a JL/JLU. The only aftermarket locker option currently for your application is the ARB.

      Northridge Chris @ Northridge4x4 3 years ago  
        
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  • Q: Regear  Regear3 years ago

    I got a 2012 JK unlimited sport. I am going to Yukon 4.56 gears. Will this truetrack work for my application? Do the bolt holes need to be drilled out to be enlarged or not? Thank you
    • 0 of 0 people found the following answer helpful

      A:  Yes, this will work for you. The Truetrac has 3/8" and 7/16" holes. To use 1/2" ring gear bolts, you will have to drill out one set of the holes. If you are using new aftermarket gears, they will have 1/2" and 7/16" holes and the install kits come with both sets of bolts, so you can use the 7/16" bolts and no drilling of the carrier will be required.

      Northridge Chris @ Northridge4x4 3 years ago  
        
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  • Q: Detroit trutrac for 2014 wrangler/w automatic   Jeep worries 3 years ago

    I'm swapping out the factory trac lock w/4.88 gearing to a Eaton DTT 913A589. I have read this will not work because of ABS computer issues. Is this true?
    • 0 of 0 people found the following answer helpful

      A:  The Eaton Truetrac won't cause any ABS issues. Going to the 4.88 gear set from stock, you will need a programmer such as the AEV Procal to calibrate the computer to the correct gear set.

      Northridge Kaleb @ Northridge4x4 3 years ago  
        
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  • Q: Gears   HB4 years ago

    Will this work with 4.56 gears on a jku?
    • 1 of 1 people found the following answer helpful

      A:  Yes it will. The JK's use thick cut gears in the Dana 44's so all ratios would use the 3.73 and down carrier.

      Northridge Kaleb @ Northridge4x4 4 years ago  
        
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  • Q: Eaton Detroit Truetrac Dana 44  fishboatshoot4 years ago

    I have a 2018 Jk 3:21 dana 44. Will this install with no modifications to the carrier with stock gears.
  • Q: Truetrack  BBQ4 years ago

    I got a 2013 JK sport. I am going to 4.56 gears. Will this truetrack work for my application?
  • Q: Truetrac 913a589   kyle834 years ago

    I know this is the part for all jk non Rubicons regardless of gear ratio, but do the bolt holes need to be drilled out to be enlarged or not? So many conflicting posts!
    • 2 of 2 people found the following answer helpful

      A:  The Truetrac has 3/8" and 7/16" holes. To use 1/2" ring gear bolts, you will have to drill out one set of the holes. If you are using new aftermarket gears, they will have 1/2" and 7/16" holes and the install kits come with both sets of bolts, so you can use the 7/16" bolts and no drilling of the carrier will be required.

      Northridge Kaleb @ Northridge4x4 4 years ago  
        
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  • Q: TrueTrac  Mike P5 years ago

    My ‘20 JT has 3.73s in the rear. My plan is to replace the front and rears with 4.88s and I considered adding the Truetrac while I’m underneath the truck. Would I need to go with a 3.92 up configuration instead of the 3.73 down? What other hardware would be required for a complete overhaul?
    • 0 of 0 people found the following answer helpful

      A:  This does not work with the JT Gladiators. As of yet, Eaton hasn't released any aftermarket differentials for the JL or JT.

      Northridge Kaleb @ Northridge4x4 5 years ago  
        
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  • Q: dana 44 fitment  thomas5 years ago

    i have a dana 44 out of a 89 Cherokee. this dana 44 only came in 3 years of cherokee with the tow package and im wondering if this is going to fit.
    • 0 of 0 people found the following answer helpful

      A:  If you are using a 3.73 and down(numerically) gear set, then yes. If you have a 3.92 and up(numerically) then you want p/n 913A590.

      Northridge Kaleb @ Northridge4x4 5 years ago  
        
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