Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$4,500 Giveaway! 3 Winners Enter Now

Ford Performance Finned Differential Cover - 8.8 in. (11-14 V6; 86-14 V8, Excluding 99-04 Cobra)

Item 50501
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $206.79 You Save 12% ($23.79)
Our Price


FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

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

    • Original Equipment on 2013 Shelby GT500 with Track Pack
    • Finned Design
    • Dissipates Heat - Increases Gear Life
    • Increases Rear End Rigidity
    • Light-Weight Cast Aluminum Construction
    • Fittings for Differential Cooler Pickup and Return Lines
    • Cover Machined for Temperature Sensor with M10 X 1.6-6h Threads
    • Fits 1986-2014 8.8" Solid Axle Equipped Mustangs
    GT500 Original Equipment. This Ford Racing Finned Differential Cover is the same exact one found as original equipment on the 2013 Shelby GT500 with the Track Pack option. Designed with cooling fins to reduce overall gear oil temperature to improve gear and bearing life, this Differential Cover features fittings for differential cooler pickup and return lines, as well as an oil temperature sensor.

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

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

    Application. This Finned Ford Racing 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, BOSS, Shelby GT500 and 1993-1998 SVT Cobra. It will not fit 1999-2004 Independent Rear Suspension (IRS) equipped SVT Cobras.

    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# M-4033-KA

    CA Residents: WARNING: Cancer and Reproductive Harm -

    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, 00
    • 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 (24) Submit Your Photo

      View All 24 Photos

        Questions & Answers (5)

        5 Top Rated Questions

        I have a Whiteline adjustable panhard bar on my 2009 GT. do I need a relocation bracket to clear the finned diff cover?

        • You will not need a relocation bracket for the Whiteline adjustable panhard bar to clear the finned diff cover.

        Helpful (3)

        Does it come with a axle vent plug? or does it use the stock axle vent as well.

        • This does come with a plug for the vent on the cover as the stock axle vent will still be used.

        Helpful (1)

        Does this cover come complete with all the gasket that is required for installment? How much fluid do I need to refill the differential?

        • This cover does not come with the gasket and it will need 3 quarts of Royal Purple Synthetic gear oil.

        Helpful (1)

        I have the Ford Performance Differential Cover . I don’t have the hardware or gasket it has the top and bottom fill and drain plugs do you sell a hardware kit for it .

        Do you know what thread the top vent plug is?

        Post Your Question

          Customer Reviews (26) Write a Review

          Ratings Summary

          4.9 out of 5 overall rating from 26 customers

          Installation Time: Afternoon

          Installation Cost: $100-$250

          • November 20, 2019

            5 1995 GT - DouglasS Installation Time: Afternoon

            Future 95 Bullitt

            Great Ford Performance part. It has function and form. I'm glad this one comes with the proper bolts.

            Helpful (0)
          • October 30, 2019

            5 2013 GT - MPD1055 Installation Time: Afternoon

            Great upgrade

            I also installed the BMR Panhard bar at the same time but it fits and looks great, and instead of using RTV silicone for the gasket i just got the LUBE LOCKER LLR-F880 diff gasket no mess and much easier and re-usable, I put the stock breather on the new cover and used the "Turkey baster style breather "AR3Z-4A058-B" that was part of a Ford TSB on the factory axle breather location.

            Helpful (0)
          • October 24, 2019

            5 1989 GT - VietH Installation Time: Less than 1 Hour

            Great purchase

            The differential cover fits on great and is an amazing replacement for the old cover. Not only that but it also adds in a inserting plug and a drain plug which is helps for future maintenance.

            Helpful (0)
          • September 08, 2019

            5 2012 GT - Wotang2012 Installation Time: Less than 1 Hour

            Simple performance and aesthetics upgrade!

            A simple and easy to install performance upgrade that looks great! Also sets you up for further cooling options. Comes with bolts!

            Helpful (0)
          • June 14, 2019

            5 2005 GT - NickM Installation Time: Less than 1 Hour

            Looks great, works wonderful

            Keeping the gears cool while hard driving is my goal. It has been accomplished with this Ford Performance Finned Differential Cover. I'm glad I bought it

            Helpful (0)
          • May 25, 2019

            5 2003 GT - Snakeyes Installation Time: Less than 1 Hour

            Nice Upgrade

            Had a leaky diff cover and decided to upgrade. Glad I did. Quality ford product. Functional, looks great. Came with the longer bolts needed due to the thickness of the cover. Make sure to pickup a gasket or silicone gasket maker.

            Helpful (1)
          • May 21, 2019

            5 2006 GT - MikeL Installation Time: Less than 1 Hour


            Fit perfect and looks amazing. No problem on install even with pan hard bar and support bar.

            Helpful (0)
          • April 03, 2019

            4 2005 GT - mod Installation Time: Afternoon

            Solid piece

            Looks great,came with all the bolts. Had to replace a wheel bearing so I went ahead and got this as well

            Helpful (0)
          • December 11, 2018

            5 1992 GT - GR Installation Time: Less than 1 Hour

            Excellent part....excellent service !!

            My Son told me about American Muscle, and swears by them for his '92 GT resto-mod project. I pulled the trigger on this sweet diff. Cover as a Christmas present 2 days ago. The price was lower than everyone else, and the part shipped within 8 hours of my order. These folks are fast, honest, and smart. They verified my fitment before charging me which nobody else has ever done for me. Well done AM ! You've earned a customer for life. Thank you, GR.

            Helpful (2)
          • October 30, 2018

            5 2001 GT - AlexC Installation Time: Less than 1 Hour

            Quick upgrade

            Talk about quick, if you don’t count the cobra differential clutch upgrade and cobra brakes install this cover only took maybe an hour to install the longest part being lifting the car and draining it. Even filling it up was a breeze with amsoil’s new flex pack gear oil left no mess and no waste.

            Helpful (5)
          • October 08, 2018

            5 2012 GT - CarlD Installation Time: Afternoon

            Differential Cover Install

            The cover fit perfectly and installed easily. The pan hard bar has to be removed to install it. Installed it looks great

            Helpful (6)
          • August 26, 2018

            5 1986 Other - PatrickR Installation Time: Less than 1 Hour

            Diff cover

            Nice piece of equipment. Has the look of a upgraded stock replacement. Great for fluid change. Added this piece when changing the rear gear and pinion. Definitely will make changing the break in fluid

            Helpful (5)
          • June 16, 2018

            5 2011 GT - JasonB Installation Time: Less than 1 Hour

            Much nicer than stock

            Looks way better than the stock cover, and should keep the fluid cooler. This cover does come with new bolts and drain a fill plugs which will make future maintenance much easier.

            Helpful (7)
          • March 06, 2018

            5 2014 V6 - Logan541

            Big differance

            I enter my car in shows, look wise it is great, and using the old touch test it is cooler, so therefore has to be doing something good. Install was simple however you must remove the panrod bar. Just remember once you remove the pan-rod bar bolts, the only way you are getting that bar out is to lower the car back to the ground, it will come right out. Jack it back up and put the cover on, lower it and install the bar. I have a lift so it was not all that bad

            Helpful (12)
          • November 16, 2017

            5 2013 GT - MarkK Installation Time: Afternoon

            Easier to change fluid

            This diff cover certainly looks better, and does keep the fluid cooler, and absolutely makes fluid changes much much easier. However, at a road-course HPDE in a car with only partial bolt-ons I am still heating the diff fluid enough to spit out of the overflow valve, so the cooling power isnt exactly mind blowing, but seemingly enough to keep the diff from cooking completely, so money well spent.

            Helpful (8)
          • November 14, 2017

            5 2014 V6 - MichaelG Installation Time: Shop Install Installation Cost: 0-$100

            differential cover

            looks good / aggressive appearance ...........................

            Helpful (8)
          • March 02, 2017

            5 2011 GT - LamarS Installation Time: Afternoon

            Great Fix for axle leak

            Got this for my 2011 GT because I was having oil leak from the axle vent tube. I replaced the vent tube first with Ford OEM part and still had the drips on the garage floor. Installed this cover because it has the fins to keep it cooler and it worked. No more oil drips. FYI you will have to drop the panhard bar in order to install new one. And be sure to get the longer bolts that are suggested with this, stock bolts are too short. Great product, looks great, and it works for leaks.

            Helpful (8)
          • November 20, 2016

            4 2013 GT - mxkon Installation Time: Afternoon

            Good for the money

            I was experiencing some high temps and accelerated wear in my factory rear end under occasional track conditions. This finned diff is exactly what should have always come standard on any of the GT and up mustang models, and seems to have helped keep the temps a bit more under control.

            Helpful (9)
          • July 20, 2016

            5 2014 V6 - jwpMustang

            sould come stock from factory

            looks good and you can do your diff fluid changes easier. oh, and it's cost is a tad high

            Helpful (9)
          • January 16, 2016

            5 2011 GT - Mike46 Installation Time: Less than 1 Hour

            Ford Racing Finned Differential Cover

            Needed to change the differential oil so I thought I'd swap out the cover with this on. Well made and looks cool.

            Helpful (9)

          Related Mustang Categories