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79-11 8.8" Rear End Girdle System Installation Guide

This Mustang Parts Installation Guide Works For

Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Fitment Includes:
  • - V6 2011, 2012, 2013
  • - GT 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
  • - Cobra 1994, 1995, 1996, 1997, 1998
  • - Mach 1 2003, 2004
  • - GT500 2007, 2008, 2009, 2010, 2011, 2012
  • - Bullitt 2001, 2008, 2009
  • - Foxbody 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Fitment Includes:
  • - V6 2011, 2012, 2013
  • - GT 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
  • - Cobra 1994, 1995, 1996, 1997, 1998
  • - Mach 1 2003, 2004
  • - GT500 2007, 2008, 2009, 2010, 2011, 2012
  • - Bullitt 2001, 2008, 2009
  • - Foxbody 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
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Tools Required

Basic Hand Tools Required
Installation Time: 60 Mins

Installation

  1. The first step is to remove the 10 bolts that secure the cover to the housing. Then gently insert a flat-head screwdriver between the cover and the housing and pry the cover off allowing the gear oil to drain.
  2. Remove the stock cap bolts and install the new cap bolts girdle and spacers.
  3. With the cap girdles spacers and new fasteners in place torque cap bolts to 75lb-ft (factory specification).
  4. Bolt cover back in place. Be sure to put a light bead of silicone around the cover.
  5. Once installation is complete fill the rear end with 75W90-gear oil and check for leaks.

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