Truck and Jeep Parts Home » Drivetrain & Differentials » Differentials » Dana 44 30 Spline 3.92 Up Automatic Locker

Dana 44 30 Spline 3.92 Up Automatic Locker

Detroit Locker | Part Number: EAT187SL16C
  • Technical Details

    • For Use With 30 Spline Axles
    • For Use With 3.92 And Up Gears
    • Automatic Locking
    • Legendary Traction
    • Unmatched Durability

The Detroit Locker maximizes traction by delivering 100% of the torque to both drive wheels. It is engineered to keep both wheels in a constant drive mode, and has the ability to automatically allow wheel speed differentiation when required. No other performance differential has the reputation for delivering traction in mud, snow, rocks and on the track.

Installation instructions are in PDF format. You will need Adobe Reader to view these files.
Download Instructions

Popular Axle ManufactureDifferential TypeAxle Spline
DanaAutomatic Locker30

Other Products You May Be Interested In

Customer Reviews

Average Customer Review

Questions & Answers

Do you have questions about this product?

get answers from real customers and in-house experts with AnswerBox.

8 Questions | 8 Answers
Displaying questions 1-8
  • Q:

    I have a 2010 toyota tacoma double cab LB prerunner with a 4.0 5sp auto and a TRD sport package. I don't know the rearend model but I know that I am running 3.73 gears. Could you point me in the right direction to see if this product is compatible for my truck or what I could get to increase traction?

    Asked on 7/8/2014 by 87soulsurvivor from raleigh,nc

    1 answer



      Hello William
      Your Tacoma has the 8.4 Toyota rear axle in it. There is the Eaton / Detroit locker part number EAT187sl199a. They are great off-road but very aggressive for street use. We also have the Eaton TrueTrac part number EAT913a541. The TrueTrac is a high torque bias limited slip. It is all gear driven with no clutches to wear out. Both units do not require any special fluids.

      Answered on 7/8/2014 by Rody from Compton
  • Q:

    I have a 94 jeep wrangler with a rear dana 44 from an 87 or 89 jeep cherokee. will this locker replace my current carrier? Oh and my gears are 4.56.
    Asked on 4/21/2014 by Gary from Hayward, ca

    1 answer

    • Staff Reviewer


      Hi Gary The EAT187SL16C will fit your Cherokee 44 perfect and will work with the 4.56 gears as long as they are not a set of special thick gears Thank You

      Answered on 4/21/2014 by Stevie from Compton Ca. U.S.A.
  • Q:

    1997 Jeep TJ stock rearend will this fit
    Asked on 3/14/2014 by Larry from United States

    1 answer

    • Staff Reviewer


      Hi Larry
      It is extremely rare to have a Dana 44 in the TJ Jeeps unless it is sold outside the US r a Rubicon. The normal rear axle in the TJ is the Dana 35 which has an oval shape to the cover with no flat sides. the Dana 44 has a distinct cover with 6 flat edges and rounded top and bottom. the Dana 35 has very week axles and if adding a locker to it i would recommend the G/296-2049-2-30DL which will include a set of 30 spline chromoly axle shafts and the Detroit Locker. If you do have a Dana 44 this locker will work but only with the 4.10 and to 5.38 gears Thank You

      Answered on 3/14/2014 by Stevie from Compton Ca. U.S.A.
  • Q:

    2013 JK Sport S/ Dana 44 3.73 Limited Slip Rear currently.
    Want Detroit auto Locker rear,
    want limited slip in Dana 30 front.
    Am I looking at the correct equipment?
    Asked on 2/16/2014 by Mike from Fair Oaks, CA

    1 answer

    • Staff Reviewer



      Thank you for your question. The Detroit Locker Dana 44 30 Spline 3.92 Up Automatic Locker is correct for the rear axle and will replace the current limited slip carrier. The Limited slip for the front dana 30 for your 2013 JK sport can be found here

      Answered on 2/16/2014 by Mike from Compton, CA
  • Q:

    Looking for a new diff for my 2003 Dodge Ram 1500. Will this product be compatible? If not, which Detroit Locker is right for me?
    Asked on 2/9/2014 by Josh S. from Mont Belvieu, TX

    1 answer

    • Staff Reviewer


      Hi Josh
      Your 2003 Should still be the Dana 44 solid front axle. You will need to find out what the gear ratio you have or are planning to run before you can order because there is a case split determined by gear ratio. 3.73 and numerically lower like 3.73-354 then there is a 3.92 and up numerically higher like 4.10-488 Thank You

      Answered on 2/10/2014 by Stevie from Compton Ca. U.S.A.
  • Q:

    I have a 89 f250 w/Dana 44 front & Dana 60 rear end can I use these lockers for my front end w/4.56 gears?
    Asked on 1/11/2014 by jboo from HawaIi

    1 answer

    • Staff Reviewer


      Hello jboo,

      Yes, you can use the Detroit Locker Dana 44 30 Spline 3.92 Up Automatic Locker EAT187SL16C in your vehicle application. Thank you for the email.

      Answered on 1/12/2014 by SD from Compton, CA
  • Q:

    I am looking for a rear end for a jeep wranger 2003. (Dana 35 with 410 gears.
    Asked on 10/14/2013 by Jim from Kingston Springs Tn. 37082

    1 answer

    • Staff Reviewer


      Jim I am sorry but we do not build the Dana 35 axles we only offer the Dana 44 and 60 axles for the Jeep TJ Thank You

      Answered on 10/14/2013 by Stevie from Compton Ca.
  • Q:

    hello, I am having a problem with my detroit for dana 44 3,92 and up.
    do you have replacement parts for this?
    part number I need is 68270.
    Asked on 7/22/2013 by Matias

    1 answer

    • Staff Reviewer


      We do not stock replacement parts for the Detroit lockers but we do drop ship them for our customers from Eaton who owns Detroit Locker now. the part is $140.99 plus a $20.00 drop ship fee. Please give us a call at 877 474-4821 and our sales staff will place the order for you. please give them part number EAT68270 so they can find it in our system.

      Answered on 7/22/2013 by Stevie from Compton Ca.
Displaying questions 1-8

Do you have a question about this product? 

  • Now Hiring

    4 Wheel Parts is Hiring

    To see all of our current job openings

    Apply Now

  • Catalogs

    4 Wheel Parts Catalog

    Free Full-Color
    Jeep & Truck Catalogs.

    Request a Catalog

  • Email Offers

    Sign up now to receive our latest promotions and exclusive offers.

  • Store Locator

    4 Wheel Parts Store Locator

    68 Stores in North America.
    Locate a store near you.

    Store Locator