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Teraflex CRD50R And Dana 44 HD Differential Cover (87-18 Wrangler YJ, TJ, JK & JL)

Market Price $110.64 You Save 11% ($11.85)
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  • Item J11677
  • MPN# 3990650

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    Features, Video & Details

    • Differential Cover
    • Protects CRD50R and Dana 44 Differential
    • 3/8" Thick Ductile-Iron Construction
    • Glossy Black Finish
    • Two Fill Plugs - For Standard or High Pinion D44 Housings
    • Bolt-On Installation
    • Fits 1987-2018 Jeep Wrangle YJ, TJ,JK and JL Models

    Review & Installation Video

    Review & Install Video

    Today we're gonna talk through the installation of this diff cover, which is a very simple one-out-of-three wrench installation. Installing this is pretty much just going through the process of changing the fluid in your differential which, of course, is a one-out-of-three wrench install, and it won't take you more than an hour to complete, but we'll talk more about that installation in just a second. Also, gonna talk through the construction, and a few of the features of this differential cover.There are a few different heavy-duty differential covers on the market, and most of them are going to be right around the same price as this one. While this does have the feature of having two different drain plugs in it so you can mount this as a high-pinion or a low-pinion differential cover, it doesn't have some of the other features of the more fancy feature pack and expensive differential covers. This isn't going to have any sort of magnetic drain plug, it's not going to have any sort of dipstick in it, but this is still going to be much stronger than your factory differential cover. So, if you're worried about peeling back a differential cover when you're out on the rocks, installing this will definitely give you a little bit more peace of mind, and it's going to be less expensive than those premium covers.This is made of a ductile iron that is 3/8" thick so, of course, this is very, very strong. It comes with a gloss black powder coat and, of course, has the Teraflex name right there in red. As we said, this does have two different drain plugs built in to it. One is for a high-pinion use, and the other is for the low-pinion, so you can use this on either a front or a rear Dana 44 axle. This is also going to come with all of the bolts that attach the differential cover to the axle and the two drain plugs themselves. All you need to supply is the RTV and the differential fluid. This is, of course, a very simple one-out-of-three wrench installation that will take you less than an hour to complete. The first step is, of course, removing that factory differential cover, and before you do that you will want to make sure that you will have a drain pan underneath of it to catch all of the fluid as it comes out. Then, you can go ahead and zip off all of the bolts that are holding that factory diff cover, and use some sort of prying mechanism, even a flat-head screwdriver, to release the cover from the differential itself. Of course, you'll drain all the fluid at this point.The next step is cleaning the surface of the differential itself. You wanna make sure that that's nice and clean, make sure that it's not marred but it's also not dirty; a nice clean surface. You can even use a brake cleaner to make sure that doesn't have any residual fluid on it. After that, you will put a bead of RTV around the differential. I like to let it set up for just a couple of minutes. Then, go ahead and install the differential cover with the included hardware, torquing every thing down in a star pattern. Then, let the RTV set up the rest of the way before filling the differential and plugging it up. The whole process is gonna be very simple, as I said. This is pretty much the same steps as just changing your differential fluid, but you put a different cover on it when you're finished. This diff cover comes in at right around $100 and, in my opinion, that's a fair price for what you're getting. This is a solid piece of iron. It's definitely going to give you some peace of mind over that much more flimsy piece of steel that comes on your differential from the factory. This is going to ensure that when you're out on the rocks, you're beating up the pumpkin, you're not going to have an issue with your differential cover failing.So, if you're looking for a differential cover for your Dana 44 axle that's much stronger than factory, I think this is going to be a really nice option. Of course, you can spend more money on a diff cover that has more bells and whistles like Magnetic Dream plugs and dipsticks, but, if you're looking for something a little bit simpler and a little bit less expensive, I think this is gonna be a good choice. So, that's my review of the Teraflex Dana 44 Heavy-Duty Differential Cover, fitting all 1987 and up Wranglers, that you can find right here at

    Construction. This differential cover from Teraflex is constructed using high-strength, ductile-iron 3/8 inches thick to keep your differential safe from the rocks and debris kicked up while wheeling your Wrangler.

    Protection. The differential is one of the most exposed elements of your Jeep, and this Teraflex heavy duty differential cover provides excellent protection from rocks and other debris kicked up by your tires. With such a critical part as a differential, investment in solid protection from the elements is a no-brainer.

    Application. Designed to fit 1987-2018 Wrangler YJ, TJ, JK and JL models. Simply uninstall your stock housing and replace it with this superior iron differential cover to help keep your Wrangler on, or off the road without unexpected stops due to mechanical failure.

    Fitment: 1987 1988 1989 1990 1991 1992 1993 1994 1995 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Differential Cover
    Installation Info
    Tech Specs
    Will it fit my Wrangler?
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    • JK Wrangler 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
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    • TJ Rubicon 2 Door - 03, 04, 05, 06
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    • TJ Wrangler 2 Door - 97, 98, 99, 00, 01, 02, 03, 04, 05, 06
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    1 Questions / 1 Answers

    Ask a Question

    Does this cover come with the bolts? I saw some installs just using silicone, and some come with gaskets. Is a gasket needed?


    • The Teraflex CRD50R And Dana 44 HD Differential Cover (87-17 Wrangler YJ, TJ & JK) only comes with the cover and does not include any additional install hardware.


    Helpful (1)

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    Customer Reviews (14) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Protection 4.928571 4.9
    • Fit 5 5
    • Appearance 4.928571 4.9
    • Bang For Your Buck 4.928571 4.9

    • 5/5

      Installation Time: Less than 1 Hour

      August 24, 2016

      Solid and easy install

      The only reason that it takes a little longer to install is because you have to do a fluid change at the same time, replace the gasket, and retorque the bolts. The installation is no different than a factory cover.


      Year: 2014Submodel: Wrangler

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      July 14, 2016


      Great product and service customer support was on point and very helpful I would recommend extreme terrain to any Jeep owner


      Year: 2009Submodel: Wrangler

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 14, 2015

      diff cover

      great product for high pinion diff looks great to. was very easy to install. just what I needed for my jeep easy to check gear oil.


      Year: 2011Fernandina Beach, FL 32034, USA

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 10, 2014

      Good product

      This was an easy install, the hardest part was keeping the dif fluid off the driveway.


      Year: 2007Phoenix, AZ, USA

      Helpful (3)

    • 4/5

      Installation Time: Less than 1 Hour

      December 18, 2017

      Teraflex 44 Diff Cover

      Very sturdy and adds a nice clean look to any differential housing. Only negative is that it slightly hangs over the housing on the axle. This Causes a very small lip, so if you're constantly crawling over rocks it could get caught. I definitely would recommend this to my friends.


      Year: 2010Submodel: Wrangler

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      September 21, 2017

      Very happy

      This was half the price of some other covers I have looked at, but quality seemed on par. If your looking for a visual upgrade and more protection over stock this is for you.


      Year: 2008Submodel: Wrangler

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      September 11, 2017


      If you are going to replace the cover this is a great option. It is significantly heavier then the stock piece and I put it to the test yesterday. It can take a hit.


      Year: 2016Submodel: Wrangler

      Helpful (2)

    • 5/5

      July 06, 2017

      Happy customer

      Great product a lot thicker than stock, installs easily. Used can sealant gasket no leaks.


      Year: 2017Submodel: Wrangler

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 13, 2017

      it keep oil in

      Popped these on as replacements from original. Have 4.88 Yukon's in front and rear and these fit like a champ.


      Year: 2011Submodel: Wrangler

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      February 26, 2015

      Great protection and looks awesome!

      Nice protection and sick looking! Highly recommend.


      Year: 2014Long Island, New York, USA

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      July 23, 2014

      Teraflex CRD50R And Dana 44 HD Differential Cover

      Installation was easy nd it fit perfectly on my 2014 JK


      Year: 2014Colorado

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      December 22, 2017

      Heavy Duty

      Bullet proof and can really take a beating. Solidly built and easy to install.


      Year: 2012Submodel: Wrangler

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      February 28, 2017

      Nice upgrade

      Good quality workmanship. All hardware included. Even set up for high pinions. Looks great installed


      Year: 2007Submodel: Wrangler

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 15, 2015

      look good. heavy duty. had to touch up the paint right out of the box.

      look good. heavy duty. had to touch up the paint right out of the box.


      Year: 2014Cincinnati, OH, USA

      Helpful (1)