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Motive Gear Performance Plus Ring and Pinion Gear Kit - 4.56 Gear Ratio (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

Item 21108
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      Product Information

      Features, Description, Reviews, Specs & Installation

      Features

      • CNC-Cut from 8620 Gear Steel
      • For Street or Track Use
      • Superior Quality
      • 4.56 Gear Ratio
      • 8.8" Ring Gear Diameter
      • Fits 1986-2014 V8 and 2011-2014 V6 (Excludes 2013-2014 GT500)

      Description

      Improve Overall Performance. Improve your V8-powered Mustang's off-the-line responsiveness with a set of 4.56 gears from Motive. These high quality 4.56 gears from Motive will give your Mustang more pull off the line and get you into your power band faster for quicker quarters and lower ET's.

      Superior Construction & Precision Fit. These Motive ring and pinon gears are CNC cut from high grade 8620 gear steel, and factory lapped for precision fit. Each set is hardness tested prior to leaving the factory to ensure the highest quality. Unlike other brands, Motive Gears do not have a reputation for "gear whine".

      Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a Ford Racing Speedometer Recalibration Tool (94-10) is an inexpensive way to fix this issue.

      Application. This Motive Performance Plus Ring and Pinion Gear set will fit all 1986 to 2014 V8 Mustangs including GT, Bullitt, Mach 1, Cobra and the 11-14 V6 Mustangs equipped with the 8.8" rear end. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

      Attention 2010 and newer Mustang Owners. Starting in 2010 Ford changed the inner rear gear pinion bearing in all 8.8" equipped Mustangs. Because of this you will require a new 8.8" rear gear pinion bearing (Ford part# 9L3Z-4630-A) for proper installation, please see drop down option above.

      Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

      Installation & Tech
      Differential Gears - Installation Instructions! Differential Gears - Installation Instructions! Mustang Rear Gears - Tech Article Mustang Rear Gears - Tech Article

      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# F888456

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

      5.0

      Customer Reviews (3)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 3 customers

      Installation Time: Shop Install





      • October 10, 2017

        5 2012 GT - RyanF Installation Time: Shop Install

        Great performance and quiet

        I've had Ford racing gears before that i loved in previous mustangs. Went with these Motive's for the large size for my t56 transmission. They are just as quiet installed great and no complaints! As always American Muscle was great with the on time delivery and continued customer service!

        Helpful (6)
      • January 10, 2010

        5 - Greg

        Awesome Gears

        Awesome gears for the Mach 1. I did cams and needed to get back some of the lower band power! These did the trick! Car feels like it is ready to move out at whatever rpm you are at. Works great on the street and the strip.

        Helpful (6)
      • December 14, 2009

        5 - Sean

        fun

        These are some fun gears if you have an auto trans. I dont drive on the highway to much but you can for sure. The gas millage isnt good highway but city its not to much worse.

        Helpful (7)

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Ring gear
      • (1) Pinion gear

      Tech Specs

      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

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