Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
1-877-887-1105
Every day 8:30AM EST - 11:00PM EST
Win 1 of 3 Exhaust Kits! Enter Daily!

Ford Performance Differential Cover - 8.8 in. (11-14 V6; 86-14 V8, Excluding 03-04 Cobra & 13-14 GT500)

Market Price $209.99 You Save 12% ($25.00)
Starting At

$184.99

FREE Shipping

  • Item 50240
  • MPN# M-4033-G2

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

In Stock Ships same business day.
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, Video & Details

    • Increases Strength, Prevents Side Load Bearing Deflection
    • Light-weight Cast 356T6 Aluminum Construction
    • Low Profile Design with Bearing Cap Support
    • Dissipates Heat - Increase Gear Life
    • Features Engraved "Ford Racing" Logo
    • For use on 8.8" Solid Axles
    • 10 Bolt Cover
    • Direct Bolt-on Replacement
    • Fits 1986-2014 8.8" Equipped Mustangs, Excludes 03-04 Cobra and 13-14 GT500

    Review & Installation Video

    Review & Install Video

    Stronger Than Stock. When upgrading the rear gears in your Mustang it's also a good idea to replace the wimpy stock differential cover with a super strong, Aluminum Differential Cover for additional safety and peace of mind. This low profile Ford Racing Differential Cover features load bolts that provide additional support for the differential bearing caps which prevent side-to-side deflection.

    Cast Aluminum Construction. Made in the USA Ford Performance manufactures their Low Profile Differential Cover from 356T6 cast aluminum for superior strength and light-weight. The 356T6 aluminum construction helps to dissipate heat much quicker than the stock unit, which in turn helps to prolong the life of your Mustangs ring and pinion gears. As an added bonus the Cover has the "Ford Racing" logo engraved directly on it. 

    Direct Bolt-On Installation. Ford Performance designed their Differential Cover to be a direct bolt-on upgrade for your Mustangs factory differential cover. With the included gasket, bolts and washers this Cover can be installed in about an hours’ time.

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

    Application. This Ford Racing Differential Cover is designed to fit the 1986-2014 Mustangs equipped with an 8.8" solid rear axle, including the 2011-2014 V6, 1986-2014 GT, Bullitt, Mach 1, 1993-1998 SVT Cobra, and 2007-2012 Shelby GT500 models.

    Application Note. This Ford Racing Differential Cover will not fit 1999-2004 SVT Cobras equipped with an Independent Rear Suspension (IRS), or 2013-2014 Shelby GT500 models.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 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

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    Hardware included:
    • (1) Axle Girdle Assembly
    • (1) Axle Girdle Gasket
    • (10) Washers
    • (10) 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
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 11, 12, 13, 14

    Fits Mustangs equipped with a 8.8" rear end only. Does not fit 1999-2004 IRS equipped Cobras or 2013-2014 GT500 models.

    You Might Also Like

    Customer Photos (58) Submit Your Photo

    View All 58 Photos

    Questions & Answers (14)

    5 Top Rated Questions

    will this fit with 4.10 gears?

    • I have a 2005 Mustang with 4.10 gears and this fit perfectly.

    Helpful (1) Show 3 more answers

    Is that a fill and drain plug on the cover? I know that there is a fill plug on the other side of the diff from factory but hard to get at, so this would make it easier if it is. Also do you offer something to make getting the oil into the case easier?

    • The Ford Performance Differential Cover has a fill port on the upper passenger side of the cover, a drain on the lower passenger side, and two adjusters for the braces on both sides on the raised section. We do not offer anything that helps with filling the diff, however a section of tubing on the bottle can be used to help in filling the diff, or a fluid transfer hand pump.

    Helpful (0)

    Will this clear whiteline sway bar and whiteline panhard bar?

    • The Ford Performance Differential Cover will clear with your Whiteline Panhard Bar and Sway Bars.

    Helpful (0)

    How much fluid does does rear end take with this cover?

    • You will need 3 quarts of gear oil when using this Ford Performance Differential Cover.

    Helpful (0)

    When installing this diff cover, can I use silicone instead of the gasket it comes with? I've heard the diff starts leaking quickly with the gasket. Thanks.

    • When installing the Ford Performance Differential Cover you can utilize the existing gasket, RTV silicone sealant, or a combination of the two. If using an RTV sealant, we recommend utilizing a RTV Black sealant such as that offered by Permatex, or equivalent.

    Helpful (0)
    Post Your Question
    9 More Questions
    Will this cover clear all aftermarket panhard bars and sway bars? Even on lowered cars? 1 answer
    Does it work with 4.10 2008 mustang gt 1 answer
    I am going to change my diff.cover(GT/CS '08) and already bought 2 quarts of oil and bottle o friction modifier.You just wrote it is enough amount of liquid and in other sites it Yours it is written that you need one extra bottle of oil.Could You tell me what is correct amount of oil 2 or 3 quarts and a friction modifier.thanks 1 answer
    Does this actually fit a 13-14 Shelby or does it say 07-12 for a reason? 1 answer
    Will this fit my 2009 Shelby GT500 without having to install a panhard bar relocation bracket, like you do with Shelby's Performance differential cover? And what keeps the bearing load bolts from leaking? 1 answer
    I RECENTLY HAD PURCHASED THIS PRODUCT AND INSTALLED IT MYSELF. MY QUESTION IS ON MY COVER ABOUT 2000MILES LATER ITS LEAKING FROM THE LOAD BOLTS, WONDERING WHAT SHOULD I DO? 1 answer
    With this diff cover, when filling the rear axle with new fluid do we just fill until it starts to drip out? 1 answer
    I own a 2012 GT (BREMBO with the 3.73 Rear Pkg). Will this Differentisl Cover work? 2 answers
    Will this clear Steeda panhard bar? Will this clear Steeda's adjustable street panhard bar? (Steeda part # 555-2551) Or, does anyone know the dimensions of this diff cover? Knowing that, I could go measure for clearance. 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Performance Gain 4.172727 4.2
    • Fit 4.947826 4.9



    • 5/5

      Installation Time: Afternoon

      September 20, 2018

      Ford Racing differential cover

      Actually ordered the BandM cover first with large cooling fins on outside, but would not work because it hit the rear sway bar on my 2004 Saleen when I test fitted. American Muscle was excellent with the return and shipped this one instead, and it works perfect. No leaks at all using just the gasket with no sealant as the manufacturer recommends. I am very happy!

      Robert64

      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      September 04, 2018

      Outstanding Item

      I had to replace my rear end pinion seal and took the chance to change out the gears and the differential cover. This item was well worth the money and makes it a lot easier to drain and fill the rear differential in the future. Would highly recommend this item.

      JellyRollPA

      Year: 2008 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 25, 2018

      Nice!

      I like the additional strength/piece of mind it adds to the rear end! Not to mention the good looks!

      DavidS

      Year: 2003 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      August 09, 2018

      Restoring

      Sometimes it's the little thing you do..Excellent Product looks great

      MauriceN

      Year: 1989 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      August 08, 2018

      Perfect

      Just such a perfect fit looks beautiful when it’s installed and I would recommend to anybody

      SaulS

      Year: 2007 Submodel: GT500

      Helpful (0)

    • 5/5

      July 27, 2018

      Nice

      Great product looks good easy install i would recommend this to anyone wanting to change their original cover

      ScottR

      Year: 2002 Submodel: GT

      Helpful (1)

    • 5/5

      July 09, 2018

      Ford Racing

      I love the cover! Gives rear diff a clean look! My old cover could no longer hold after my 3.73 gear swap so this was an awesome replacement!

      CjM

      Year: 2012 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      July 07, 2018

      Definite upgrade

      I replaced my stock cover with this Ford Performance cover while getting a rear axle shaft leak repaired. It's not a part you can see unless you are underneath the vehicle but it's a definite upgrade over the stock cover. This cover dissipates heat better and that alone was why I went with this cover. Definitely recommend.

      BuffdaddyAnt

      Year: 2013 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 02, 2018

      Ford racing diff cover

      After working on the rear end, putting the stock diff cover back on just wouldn't be right. Put the new diff cover on and sure made the rear end look a little newer

      9838stang

      Year: 2000 Submodel: GT

      Helpful (2)

    • 3/5

      June 02, 2018

      Not installed yet!

      My cover is still in the box. I have yet to install it, but overall it is a nice looking cover, and should complement my black 2005 Mustang GT after installation.

      EarlS

      Year: 2005 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      May 01, 2018

      Cop

      Very nice differential look grate with new pan bar .

      DonaldR

      Year: 2005 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      April 03, 2018

      Diff cover

      Replaced the stock gears with 4:10s Decided to go with this cover to hopefully keep them cooler

      JoeT

      Year: 2005 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      March 15, 2018

      2007 gt500

      Fit perfectly. No problems with my BMR panhard bar. If your have an 8.8, this is the diff cover to get.

      vegasgt500

      Year: 2007 Submodel: GT500

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      March 14, 2018

      Support that looks great!

      Get rid of the tin can cap ford gave you. Get one of these beautiful rear diff covers that add support as well. Great addition to underneath your car.

      LonnieT

      Year: 1993 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      February 28, 2018

      Why Not?

      Working on a Project SN95 Convertible (Oct 94, 95 Model year) and found a 8.8 rear axle to swap out the 7.5 stock. Got it home ($220.00) and opened the pumpkin. The Stock 3.27:1 and TracLoc was in great condition but the diff cover looked horribly like a peanut butter can lid so it was in need to go. I would like to have 3.73:1 but I am use to 2.73:1 so this is already and upgrade. I decided on this Girdle because in concert with the new axle, FMS Aluminum driveshaft, and SVE control arms I can now reach 400 rwhp without worries. After watching the short video (not the one on this site, very not useful) I followed what they suggested and it maybe took me 15 minutes at best. Looks great and now when the oil guy at my shop services my car, he can cry in his Chevy all the way home. Got to build the foundation guys and gals first. Too many people want to get under the hood and increase the HP over making sure the foundation can hold it all first. Do the math, plan it out, get the right parts, then blow them away. "Stock Sucks"

      Nobody

      Year: 1995 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Weekend

      February 26, 2018

      Well worth it, IMO

      This was my first differential fluid change, and I decided to go ahead and get this cover instead of replacing the stock cover. First of all, do yourself a favor and remove the panhard bar (runs diagonally closest to the differential cover). You will need to remove it for installation anyway, may as well remove it at the start so scraping the old gasket will be that much easier. I was undecided as to whether or not to use the supplied gasket, so I tried RTV first. Since I don't have experience with it, I just ended making a huge mess so I pulled it off, scraped it all again, and used the supplied gasket. All-in-all, I'm pretty happy with the purchase. I wish they didn't use hex bolts because I ended up having to buy a set of allen bits to use with my torque wrench, but I guess any excuse to buy new tools can't be all bad. I took the weekend to install it, which is ridiculous. But, as I said, it was my first time so I took my time and made some mistakes.

      Noob

      Year: 2006 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      February 25, 2018

      Nice add on

      I just rebuilt my Diff and this is a necessary add on and keeps my Bullitt Stock Class. I live in a very hot place, so anything I can do to mitigate heat is advantageous. Nice add on to a Diff replacement.

      Bird00

      Year: 2008 Submodel: Bullitt

      Helpful (3)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $500-$1000

      February 09, 2018

      Diff Cover

      Blows away stock cover for looks after 4:10 gear install. Can’t see it at all unless you’re flat on your stomach with one ear on the ground and using a flashlight.

      Alex

      Year: 1998 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Less than 1 Hour

      February 05, 2018

      Diff Cover Install

      Very nice piece of rear. Might as well get one while doing any gear work. Always good also to go a little bigger cover vs stock when going with a larger to aid in additional fluid/lubricant. Only suggestion I have is to ensure you put rtv or some sort of sealant in main cap support bolts and jam bolts when installing; if you do not there’s a good chance due to pressure it will seep out a little fluid.

      CodyP

      Year: 2003 Submodel: Mach 1

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      February 01, 2018

      Install ford performance racing

      I like more ford racing gear cover than stock gear cover because it's easy to drain gear oil out on bottom of ford racing gear cover and make look different from before and after

      NeilD

      Year: 1994 Submodel: GT

      Helpful (3)

    Related Mustang Categories