Differential Cover - 8.8in (86-12 GT, Mach 1, GT500; 93-98 Cobra; 11-12 V6)

OUR PRICE$149.99
Market Price $184.99You Save 19% ($35.00)
Item # 12160
Ships the same business day

Product Features

  • Heavy Duty cast aluminum
  • Dissipates heat faster
  • Prevents side load bearing deflection
  • Magnetic drain plug and bolts included
  • Fits 1986-2011 8.8" equipped Mustangs
Durable, quality construction. This 8.8 inch Girdle Support System (a.k.a. differential cover) for 1986-2011 Mustangs features heavy duty, yet lightweight, cast aluminum construction, magnetic drain plug, and the required bolts. It substantially increases your rear strength, durability, and lifespan, and is a direct fitment to OEM 8.8” differentials.


Superb characteristics under load. This 8.8" differential cover for 1986-2012+ Mustangs gives the old adage, “An ounce of prevention is worth a pound of cure” a whole new meaning! This cover gives much better heat dissipation and supports less side-to-side bearing deflection than stock.


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 Differential Cover is designed to fit the 1986 to 2011 V8 Mustangs equipped with the 8.8" rear end and installs in approximately 30 minutes using basic hand tools. It does not fit 1999-2004 IRS Cobra or 2012 Laguna Seca edition BOSS Mustangs.

Technical Note. Gasket not included. Manufacture recommends the use of a stock style gasket or a bead of Form-a-Gasket for a proper seal.

Installation Time:

(approx) 1 Hour

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

Hardware included:
  • Fasteners
  • CNC Machined Billet Aluminum differential cover

Customer Submitted Installation Guides:

79-11 8.8" Rear End Girdle System Installation Guide

What's in the box?

Hardware included:
  • Fasteners
  • CNC Machined Billet Aluminum differential cover
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Fitment:
  • V6 11
  • GT 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11
  • Cobra 94, 95, 96, 97, 98
  • Mach 1 03, 04
  • GT500 07, 08, 09, 10, 11
  • Bullitt 01, 08, 09
  • Foxbody 86, 87, 88, 89, 90, 91, 92, 93
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Known Exceptions:
Fits Mustangs equipped with a 8.8" rear end. Does not fit 99-04 IRS equipped Cobras or 2012 Laguna Seca edition BOSS Mustangs

Customer Reviews

4.619
  • 5/5
    04 GT
    April 5, 2010
    Dickie Ayer
    2004GT
    Great piece. Replaced the wimpy stamped cover when I had the gears changed. Looks much stronger and really looks great, especially after painting the axle
    2 of 2 voted this as helpful.Yes, I recommend this product.
  • 5/5
    Rear End Differential Cover
    August 27, 2010
    Steve Robertson
    Daily Driver
    Basic tools to install. Looks good and really dresses out the lower end. American Muscle shipped fast and all instructions were supplied.
    2 of 2 voted this as helpful.Yes, I recommend this product.
  • 5/5
    Double check Allen Bolts!
    December 1, 2010
    Leo
    Daily Driver
    Great, quality product for a great price but the Allen bolts that came with the cover were too long, thus causing a leak. I just got some lock washers that fit to extend the seal gap, or you could shave the bolts. If you experience leaking that's most likely your problem.
    6 of 6 voted this as helpful.Yes, I recommend this product.