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Motive Gear Performance Plus Ring and Pinion Gear Kit; 4.56 Gear Ratio (86-93 Mustang GT)

Item 21108G87
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$385.99

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Superior Quality
      • CNC-Cut from 8620 Gear Steel
      • 4.56 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Fits 1986-1993 GT and 5.0 LX Mustangs

      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 new Speedometer Gear is an inexpensive way to fix this issue.

      Application. This Motive Performance Plus 4.56 Ring and Pinion Gear set will fit all 1986 to 1993 V8 Mustangs including the GT, LX 5.0 and Cobra models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above. Please note, due to the high numeric gear ratio, it will require a notched gear cross pin for proper installation.

      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, see drop down option above.

      Fitment:

      Details

      Motive Gear F888456

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

      Installation & What's in the Box

      Installation Info

      What's in the Box

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

      Tech Specs

      Approximate RPM for 1986-1993 GT


      Manual
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 4739 6635        
      2 2798 3918 5037 6156    
      3 1870 2618 3366 4115 4863 5611
      4 1406 1969 2531 3094 3656 4219
      5 942 1319 1696 2073 2450 2826


      Automatic
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 3375 4725 6075      
      2 2062 2887 3712 4537 5362 6187
      3 1406 1969 2531 3094 3656 4219
      4 937 1312 1687 2062 2437 2812
      4.7

      Customer Reviews (399)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • GT - 87, 88, 89, 90, 91, 92, 93
        • LX - 87, 88, 89, 90, 91, 92, 93
        • Other - 86

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