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Auburn Gear HP Series Limit Slip Differential - 31 Spline 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

AmericanMuscle no longer carries the Auburn Gear HP Series Limit Slip Differential - 31 Spline 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500). Please check out 2010-2014 Mustang Limited Slip Differentials for an updated selection.

Features & Details

  • Put the Power to the Pavement
  • Assembled 8.8" Limited Slip Differential
  • Requires 31 Spline Axles
  • High Performance
  • Fits 1986-2014 V8 and 2011-2014 V6 (Excludes 2013-2014 GT500)
  • Made in the USA
Limited Slip Differential. If your stock rear end is not putting the power to the pavement you need to upgrade to a Auburn High Performance Series 8.8in 31 Spline Limited Slip Differential from AmericanMuscle. A Limited Slip Differential (LSD) sometimes referred to as a "Posi" will allow both rear wheels to plant the power to the ground giving you better traction and more impressive burnouts.

Application. This Auburn High Performance Series Limit Slip Differential will fit both solid axle and independent rear suspensions (IRS) equipped V8 Mustangs from 1986 to 2014 as well as 2011 to 2014 V6 Mustangs. Requires 31 spline axles. (Will not fit the 2013-2014 GT500).Application Note: 1986-2004 V8 Mustangs came factory equipped with 28 spline axles, except for 2003-2004 SVT Cobras which were 31 spline. All 2005 and newer V8 Mustangs come equipped with 31 spline axles.

Technical Note. You will need to reuse your factory 8.8” gear set, or upgrade to a set of our 8.8" rear gears required for this Limited Slip Differential. No aftermarket gears are included. For normal driving conditions we recommend you use 75W 90 rear gear oil. This will give you the same oil weight as factory. For colder temps or race use try 75w 140.

Fitment: 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# 542025

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

What's in the Box
  • (1) Limited Slip Differential
Installation Info
Tech Specs
Specifications:
  • 8.8" Limited Slip Differential
  • 10 bolt cover
  • Requires 31 spline axles
  • Requires 3 quarts Gear Oil
  • Requires 4 ounces of CM-19546-A1 friction modifier with initial fill
  • Fits solid or independent rear suspension
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • Bullitt - 01, 08, 09
  • Cobra - 93, 94, 95, 96, 97, 98, 99, 00, 01, 03, 04
  • 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 - 86
  • V6 - 11, 12, 13, 14

Fits Mustangs equipped with a 8.8" rear end. Will not fit 2013-2014 GT500

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      Questions & Answers (1)

      1 Top Rated Question

      Does this unit require a special friction modifier to be added with the gear oil? If so which one would be good.

      • The Auburn Gear HP Series Limit Slip Differential will require the use of Friction Modifier. Auburn, GM, or Ford limited slip additive can be used, but your differential will include pre packaged additive.

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        Customer Reviews (4) Write a Review

        Overall Rating 4

        out of 5 stars

        Installation Time:Full Day

        Installation Cost:$250-$500

        • Performance Gain 5 5
        • Fit 5 5



        • 1/5

          July 19, 2016

          Auburn hp

          Installed with 4.10 gears and broke in 500 miles and only lasted 2 months broke the spider gears and hopefully get it warranted and get a new one quick doesn't do to good with 800whp

          Tony

          Year: 2008 Submodel: GT

          Helpful (12)

        • 5/5

          Installation Time: Full Day

          May 07, 2016

          Auburn Gear HP Series Limit Slip Differential - 31 Spline

          This thing is sick! it feels more like a track-lok than a LSD! slow, tight turns I can feel the inner wheel start to kick a little bit. The diff works like a well oiled machine! I can tell that no matter how many times I launch this car, there's no way I'm every breaking this diff and forged axles!!

          JoshR

          Year: 2000 Submodel: GT

          Helpful (12)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $250-$500

          February 13, 2016

          SURE-GRIP POSI FOR STREET OR TRACK!!!

          Very nice differentials, this is my second hot rod I'm putting an auburn into. Same locking action as the GRIZZLY, YUKON, or EATON brand, they aren't loud and they can withstand a beating...ALSO, THEY DISENGAGE WHEN TURNING around a corner so you don't get uneven treadwear, etc.

          MAHRLIN1

          Year: 2005 Submodel: GT VERMILLION, SD

          Helpful (11)

        • 5/5

          Installation Time: Afternoon

          January 13, 2016

          Auburn

          Looked at a few and glad I went with this one. Easy to install so far so good!

          mustangkid

          Year: 1989 Submodel: Other Maryland

          Helpful (13)

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