Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter daily!

Steeda Finned Differential Cover - 8.8 in. (86-14 GT; 03-04 Mach 1; 07-12 GT500; 93-98 Cobra; 11-14 V6)

$0.00
Market Price $156.95 You Save 11% ($17.00)
Our Price

$139.95

FREE Shipping

  • Item 16249

Will this fit your Vehicle?

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Engineered by Ford, Improved by Steeda
    • Finned Design
    • Dissipates Heat - Prolongs Gear Life
    • Increases Rear End Rigidity
    • Lightweight Cast Aluminum Construction
    • Fill, Drain and Cover Vent Plugs Included
    • Fits 1986-2014 8.8" Solid Axle Equipped Mustangs
    Engineered By Ford, Improved By Steeda. Engineered by Ford as original equipment for the Shelby GT500 and Boss 302 Mustangs, this innovative differential cover was designed with cooling fins to reduce overall gear oil temperatures and to increase rear end housing rigidity for improved gear set and bearing life. Steeda has then taken this unique cover one step further by installing fill and drain plugs for ease of maintenance.

    Finned Aluminum Reduces Heat. Constructed from light-weight cast aluminum, the Steeda Mustang 8.8" Differential Cover features a finned design that dissipates heat much faster than the stock unit to prolong the life of your ring and pinion gears.

    Recommended Upgrade. When changing your differential cover, it's recommended to upgrade to fresh Royal Purple Synthetic Gear Oil. You will need 3 quarts of Gear Oil.

    Application. This Finned Steeda Differential Cover is designed to fit the 1986-2014 Mustangs equipped with the 8.8" solid axle rear end, including the 2011-2014 V6, 1986-2014 GT, Bullitt, Mach 1, 2007-2012 Shelby GT500 and 1993-1998 SVT Cobra. It will not fit 1999-2004 Independent Rear Suspension (IRS) equipped SVT Cobras.

    Technical Note: The O.E. application of this cover has the axle vent on the axle cover. All other 8.8 rear ends have the axle vent already installed on one of the axle tubes. Use the included vent plug to fill the vent hole on the cover and continue to use the existing vent on the axle tube.

    Note: Coupon codes cannot be applied to this product.

    Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

    MPN# 555-8142

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

    What's in the Box
    • (1) Axle Differential Cover
    • (1) Fill Plug
    • (1) Drain plug
    • (1) Cover vent plug
    • (10) Hex-head bolts
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09
    • Cobra - 93, 94, 95, 96, 97, 98
    • Cobra R - 93, 95
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 86
    • V6 - 11, 12, 13, 14

    Fits Mustangs equipped with a 8.8" rear end only. Does not fit 1999-2004 IRS equipped Cobras

      Customer Photos (20) Submit Your Photo

      View All 20 Photos

        Questions & Answers (12)

        5 Top Rated Questions

        Will this cover fit when installed with a Eibach Swaybar kit?

        • The Steeda Finned Differential Cover will fit with almost all factory location sway bars, however, without knowing the exact year-model of your Mustang, it would be difficult to confirm this information. If you could please contact us at your earliest convenience, we would be more than happy to confirm the fitment for your application.

        Helpful (1)

        the drain and fill plugs look way smaller than the ford racing cover which looks like the same cover, what size are ones on the steeda compared to the ford racing cover? it sure looks really small.

        Since the cover moves the axle vent to the top of the cover what do y’all recommend to plug the hole where the axle vent resides in its stock location

        • The Steeda Finned Differential Cover will come with all necessary plugs for installation.

        Helpful (0)

        Does this Steeda Finnded Diff cover kit require purchasing a new gasket or is it included in the kit?

        • The gasket is not included in this kit, no. If one is needed that would have to be purchased separately.

        Helpful (0)

        If my Manuel says that I need 2 quarts of diff fluid but an answer I say on here says 3 quarts.. is that because this case is bigger or do I still use the 2 quarts only?

        • When installing the Steeda Finned Differential Cover as per the install instructions you will fill until fluid runs out of the factory fill hole in the side of the housing casting, the cover will take up more than the factory manual states as it is larger. 

        Helpful (0)
        Post Your Question
        7 More Questions
        Will this cover fit and clear a maximum motorsports panhard bar on a 2001 gt 1 answer
        Do these require different bolts or can I use stock bolts? For a 92 fox ? 1 answer
        WIll this cover clear a Maximum Motorsports panhard bar on a foxbody? 1 answer
        Will this cover fit a 2012 with a Torsen differential? 1 answer
        Clear the Steeda panhard bar? Ok, does it clear the Steeda aftermarket adjustable bar on the 05-09? (It is slightly thicker.) 1 answer
        is a panhard bar relocation required with this cover on a 2010? 2 answers
        Gears Will this fit with 4.10's? 3 answers

          Customer Reviews (56) Write a Review

          Overall Rating 4.8

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Performance Gain 4.188679 4.2
          • Fit 4.854546 4.9



          • 5/5

            Installation Time: Less than 1 Hour

            May 25, 2019

            Awesome cover

            Fits great and looks great! I like the ability to run a catch can off the top of the cover for track use!. The lower side threaded cooler hole is not drilled through the cover so it will not work with a cooler. With the panhard bar is out of the way it's a super easy replacement.

            Trakrat197

            Year: 2007 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 11, 2019

            Well designed cover

            Great looking cover. The ring groove seems functional and should throw the oil back very well. Increased capacity of fluid from 2.1q to just around 3q. Used Lubelocker gasket for install.

            Stickshift

            Year: 2007 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 08, 2019

            Functional upgrade...

            ...that looks great too! Easy install with included hardware. Don't forget a gasket or RTV. If your due for rear end fluid change or upgrade...this should be on the list as well.

            CWOUSMC

            Year: 2012 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 25, 2019

            COVER YOUR BUT

            2011 V6. I'm stoked, and for hardly and cash spent. Pretty invested in the rear: Ford Racing L/S dif, SR 31 spindle shafts to match that dif, Ford Racing 3.73 Ring/Pin). This cover will prevent messes and help with refills after "light" track days.

            DeadKevin

            Year: 2011 Submodel: V6

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 20, 2019

            Nice part

            The part fit very nice. It makes it easier to get the gear oil into the dif.

            MattR

            Year: 1995 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            March 16, 2019

            Tight fit, but good fit

            I used a lube locker gasket to make the fitment easier. there is little room to fit in behind the rear sway bar. not having to use any gasket adhesives made the job really easy. It looks great and I no longer have to remove the cover to drain and refill fluids.

            EWebb

            Year: 2004 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            February 20, 2019

            Great cover

            Replaced my stock cover with this one because mine was leaking perfect fit.

            WayneG

            Year: 2004 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            January 27, 2019

            Diff Cover Swap

            Just completed the differential cover swap of my stock cover to the Steeda finned cover. Took about an hour, and the fit is perfect and looks great! Glad I did it.

            PatB

            Year: 2005 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Less than 1 Hour

            January 22, 2019

            Finned differential cover.

            Installed perfectly, came with all hardware/fasteners to install.

            JosiahB

            Year: 2013 Submodel: GT

            Helpful (1)

          • 5/5

            December 15, 2018

            Looks nice

            Hopefully, this will be functional and cool the gear oil some when I'm next on the track.

            rickydog

            Year: 2010 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            November 15, 2018

            rear diff

            great product i like how it has a spot where you can put a temp sensor in it

            Tony

            Year: 2006 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            November 05, 2018

            Great piece

            I got this diff cover to move my vent tube from the axle to the cover. Works great and no more leaks.

            Tj

            Year: 2013 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            May 29, 2018

            Better than girdle support style

            I had the girdle support style in the past. Although cooling wise it is hard to say a difference, I like this style better thanks to the outlets for temperature sensing etc. Not a big fan of the SAE bolts. Why not metric?

            Kp318

            Year: 2012 Submodel: V6

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            January 10, 2018

            Time for the upgrades

            This was a great piece to add while redoing the gears on my GT. It gave the car a great clean look and a big upgrade from the stock cover that had warped a little.

            RayW

            Year: 1998 Submodel: GT

            Helpful (4)

          • 5/5

            November 24, 2017

            Captain America Mustang

            Love it...it makes acceleration more responsive very good work done at RT TUNING installing the item

            EMustang2014

            Year: 2014 Submodel: V6

            Helpful (4)

          • 5/5

            October 13, 2017

            Differential cover

            This cover was a perfect fit on my car. The only thing it doesn't come with is the gasket and obviously the gear oil. I got it for the drain plug and the filler plug but as an added bonus it looks fantastic even if no one is going to see it

            Kaleb

            Year: 1994 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            September 23, 2017

            Good stuff

            Great dif cover love that it has a fill plug and drain plug it also has the fins on cover to cool the dif assembly

            JamesB

            Year: 2006 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            August 27, 2017

            Works great

            Same thing on gt500. Keeps rear cooler and dose not leak like most

            JamesW

            Year: 2014 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            August 09, 2017

            Love it

            Fitment was perfect all hardware included if you running a BMR panhard bar remove it before doing anything with the diff cover will save you a lot of time avoids getting any silicon on the gears spend little over a hour doing this as was my fist time and panhard bar being in the way at first.

            1SICK50

            Year: 2014 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            July 29, 2017

            Very nice!!

            I bought this over the Ford cover because of the magnetic drain plug. I am honestly not sure on how to rate this product other than that. Looks good back there and clears my BMR Watts Link.

            WadeW

            Year: 2014 Submodel: GT

            Helpful (4)

          Related Mustang Categories