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

Item 50240
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      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 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


      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

      MPN# M-4033-G2

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 100+ customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • February 08, 2020

        5 1988 GT - Billy Installation Time: Less than 1 Hour

        Very well made

        Very well made. Even though you really can’t see it under the car unless you put it on a rack. You know the quality is there. Took less than an hour to install. It’s a lot stronger than the stock flimsy piece. This is a must have when swapping gears.

        Helpful (0)
      • January 13, 2020

        5 2008 GT - ButchE Installation Time: Less than 1 Hour

        Nice finishing touch!

        This cover looks and fits great! I have 4:10 gears and a stock Panhard bar on my 2008 Mustang. The ring gear has room, but just. I doubt any larger ring gear would work. I was concerned about clearance to the Panhard bar, but it clears by about 1/4”. You will need to take loose one end of the Panhard bar to install it. But it looks great and makes for a nice finished look.....even if it isn’t seen by many.

        Helpful (0)
      • November 16, 2019

        5 2014 GT - therog

        looks killer and feels strong

        love the confidence it give me to launch a 5000 rpm

        Helpful (0)
      • November 12, 2019

        5 1994 GT - WarrenP Installation Time: Less than 1 Hour

        Rear end

        Looks good and adds style. Car won’t be on the road until summer so I shall see how it holds up.

        Helpful (0)
      • November 06, 2019

        5 2008 GT - Ernest

        Great Item - Highly Recomended!

        Well worth replacing the stock cover - I love this cover.

        Helpful (1)
      • October 14, 2019

        5 2007 GT - SUPURMAN

        Great quality cover.

        I initially purchased a UPR cover, which was a very rough cast, and just poor quality in general. This cover is exactly what I had hoped.

        Helpful (0)
      • October 01, 2019

        5 2012 GT - baytoys Installation Time: Afternoon

        Dope rear differential cover

        Dope rear differential cover does exactly what it's supposed to do comes with nice installation instructions step by step and the product itself is awesome has the field and drain plug on the cover nice thick and durable seems like it'll last forever

        Helpful (1)
      • September 22, 2019

        5 2012 V6 - TK Installation Time: Less than 1 Hour

        Nice addition to my 2012

        This is a pretty high quality cover that really accentuates the rear end. A bit pricey but a nice touch.

        Helpful (0)
      • August 13, 2019

        5 2011 GT - Aclsallen Installation Time: Afternoon


        This cover is very well made! Will also make it easier to change my fluid when needed. It was a pain to put on but worth it!

        Helpful (0)
      • June 14, 2019

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

        Great look!

        Love the way it looks, too bad it is only visible on the lift...

        Helpful (1)

      Questions & Answers (22 answers)

      5 Top Rated Questions

      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 (2)

      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 (1)

      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 (1)

      Will this cover clear all aftermarket panhard bars and sway bars? Even on lowered cars?

      • This cover will clear after market sway bars, panhard bars, and the car being lowered yes!

      Helpful (1)

      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
      10 More Questions
      Will this fit a 2007 roush 427r? 0 answer
      Will this clear 4.11 gears? 0 answer
      Is the inside of the FRPP cover painted? It does look shiny for cast Aluminum. Thanxs 1 answer
      Are there any clearance issues with the spare tire well in a Fox body or an MM Panhard bar? 1 answer
      Where is the drain plug? Is in the small black plug at the bottom right? 1 answer
      will this fit a 2013 F150 8.8 front diff? 1 answer
      Will this differential cover work with the BMR Hammerstone watts link? 0 answer
      Will this cover work with 4.56 gears? Thanks God bless! 1 answer
      Will this clear whiteline sway bar and whiteline panhard bar? 1 answer
      Does it work with 4.10 2008 mustang gt 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      Hardware included:
      • (1) Axle Girdle Assembly
      • (1) Axle Girdle Gasket
      • (10) Washers
      • (10) Bolts

      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.

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