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Ford Performance Trac-Lok Limited Slip Differential - 31 Spline 9 in.

Market Price $466.99 You Save 12% ($55.00)
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$411.99

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  • Item 102227
  • MPN# M-4204-F31A

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    Features & Details

    • Put the Power to the Pavement
    • 9" Limited Slip Differential
    • Heavy Duty Construction
    • Requires 31 Spline Axles, 9" Ring and Pinion and 9" Housing
    • Perfect for Street and Strip Application
    • Intended for Custom Applications
    Limited Slip Differential. Is your stock rear end leaving you in the lurch? Then you need to upgrade to a Ford Racing 9" 31-Spline Traction-LOK Limited Slip Differential from AmericanMuscle. A Limited Slip Differential (LSD) sometimes referred to as a "Posi" will allow both rear wheels to put the power down on the pavement giving you better traction and more impressive burnouts.

    Heavy Duty Construction. Featuring a case cast from high-strength nodular iron, this Ford Racing Limited Slip Differential boast 1536 steel billet case caps and OEM profile gears made of high-manganese, high-chromium alloy steel for dependable heavy duty performance and long life.

    Required Upgrades. This Ford Racing 9" Limited Slip Differential requires a pair of 9" 31-spline axles, 9" ring & pinion gears, and a 9" rear axle housing.

    Application. This Ford Racing 9" Limited Slip Differential will not fit stock Mustangs, it is intended for custom built street and strip applications.

    Application Note. All 1986-2004 V8 Mustangs came factory equipped a with 8.8" rear differential with 28 spline axles, except for 2003-2004 SVT Cobras which were 31 spline. All 2005 and newer V8 Mustangs come equipped a with 8.8" rear differential with 31 spline axles.

    Technical Note. This Limited Slip Differential requires 4-ounces of CM-19546-A1 friction modifier with initial fill.

    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 2015 2016 2017 2018 2019 Details

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) 9" Limited Slip Differential
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09, 19
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
    • Cobra R - 93, 95, 00
    • EcoBoost - 15, 16, 17, 18, 19
    • 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, 15, 16, 17, 18, 19
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17

    Will not fit stock Mustangs, this LSD requires 9" 31 spline axles, 9" ring & pinion gear and 9" rear axle housing.

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    Customer Reviews (1) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Afternoon

    • Performance Gain 5 5
    • Fit 5 5



    • 5/5

      Installation Time: Afternoon

      May 21, 2016

      The best

      I don't do no more one wheel burn outs after this thanks American muscle

      Fastmax

      Year: 2006 Submodel: V6

      Helpful (9)

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