Ford Performance Traction-Lok 03-04 Cobra 31 Spline 8.8" 2003-2014

Ford Performance:


  • 8.8" Traction-Lok Differential
  • Fits 31-Spline Axles
  • Carbon Fiber Clutch Plates
  • OE In 2003-2004 Cobra Mustangs
MSRP $400.00
You save 25%

Ford Performance 03-04 Cobra 31 Spline Traction-Lok for 2003-2004 SVT Cobra Mustangs, 2005, 2006, 2007, 2008, 2009, 20102, 2011, 2012, 2013 and 2014 GT Mustangs, and 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 Shelby GT500 Mustangs with 8.8" Rearends.

Looking to put power to the pavement in your Mustang? The most common problem Mustang owners tend to overlook is how much power the rear end can handle. Replace your weak 28 spline differential with this Ford Performance 31 spline traction-lok with carbon disc differential M-4204-F318C.

Please Note: Must use 31 spline axles when converting over to the Cobra 03-04 Traction-Lok Differential

A Limited Slip Differential sometimes referred to as a "Posi" will allow both rear wheels to put the power down on the ground giving you better traction and a better driving experience. The carbon fiber friction plates are designed for higher torque application. This rear differential from Ford Racing allows you to install in a solid rear-end or an (IRS) Independent Rear Suspension.

*Requires 4-ounces of friction modifier with initial fill
*All 2005 and newer V8 Mustangs come equipped with 31 spline axles

If you're looking for parts for your Mustang, you should start by looking at the plethora of Mustang parts that CJ Pony Parts offers from Ford Performance, formerly Ford Racing. By buying your Ford Performance parts from CJ Pony Parts, you know you're getting your Mustang parts from a reliable, reputable dealer, since CJ Pony Parts is a Top 10 Ford Performance Dealer and has been for the last 10 years.

Order your Ford Performance M-4204-F318C 03-04 Cobra 31 Spline Traction-Lok for Mustangs with 8.8" Rear-ends from CJ Pony Parts today!

Vehicle Fitment:
- 2003-2004 SVT Cobra
- 2005-2014 Mustang GT
- 2007-2014 Shelby GT500

California Residents: Proposition 65 Warning

Installation Difficulty


Advanced skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

Only registered users can ask/answer questions. Please sign in or create an account.
Write Your Own Review
Only registered users can write reviews. Please sign in or create an account.