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Ford Racing Boss 302 Torsen Differential - 31 Spline 8.8 in. (05-14 GT, BOSS, GT500)

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$859.99

  • Item #50528
  • MPN# M-4204-MB

  • Market Price $1,031.99
  • You Save 17% ($172.00)
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Features
  • Standard on Boss 302 Laguna Seca
  • Full-Time Torque-Sensing, Torque Biasing Differential
  • 2.7 Drive Bias Ratio
  • 8.8" Torsen Differential
  • Requires 31 Spline Axles
  • Perfect for Street or Track
  • Fits 2005-2014 GT, Bullitt, BOSS and Shelby GT500
Description
Boss 302 Laguna Seca. Does your factory rear end just leave you spinning your wheels? Then upgrade to the same exact differential used in the Ford Racing "Boss 302 Laguna Seca" race car. This limited slip differential (lsd) uses a worm gear friction system that ensure your engine's power is transferred to the wheels for maximum traction.

Application. This Ford Racing Boss 302 8.8" Differential will fit 2005-2014 solid axle equipped V8 Mustangs including the GT, Bullitt, BOSS and Shelby GT500. Requires 31 spline axles. Does not fit IRS applications.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.

Specifications:
  • 8.8" Limited Slip Differential
  • Will accept anti-lock exciter ring
  • Requires 31 spline axles
  • Requires 3 quarts Gear Oil
  • Requires 4 ounces of CM-19546-A1 friction modifier with initial fill
  • Fits solid axle only

Technical Note. You will need to reuse your factory 8.8” gear set, or upgrade to a new set of our 8.8" rear gears 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: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

What's in the Box
  • (1) Limited Slip Differential
Installation Info
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14

Only fits Mustangs equipped with a 8.8" rear end and 31 spline axles

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1 Questions / 1 Answers

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What would be the primary reason for upgrading the OEM differential on a '14 GT (non-track pack) to the Boss 302 Torsen? Drag strip only? Auto-X? Roadcourse/track days? Is the OEM differential an inferior piece and not suitable for occasional high-performance driving?

AtlasDante Year: 2014 Model: GT

  • the oem piece is inferior to this differential but if your not banging away on the car like some of us re you wont need it.

    lukas Year: 2013 Model: GT Top 1000 Contributor

    Good Answer (1) (0)

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