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Ford Performance Ring and Pinion Gear Kit; 3.73 Gear Ratio (86-93 GT)

Item 24001G87
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      Product Information

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

      Features

      • Ford Racing Quality
      • Strong Forged Construction
      • 3.73 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Fits 1986-1993 GT and 5.0 LX Mustangs

      Description

      Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

      Superior Quality. These Ford Racing 3.73 Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion.

      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 Ford Racing Ring and Pinion Gear set will fit all 1986 to 1993 V8 Mustangs including the GT, 5.0 LX and Cobra models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, 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, see drop down option above.

      Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 Details

      Ford Performance M-4209-88373

      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 3876 5427 6977      
      2 2289 3205 4120 5036 5951 6867
      3 1100% 2142 2754 3366 3978 4590
      4 1150 1610 2070 2531 2991 3451
      5 771 1079 1387 1695 2004 2312


      Automatic
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 2761 3865 4969 6073    
      2 1687 2362 3037 3712 4386 5061
      3 1150 1610 2070 2531 2991 3451
      4 767 1074 1380 1687 1994 2301
      4.9

      Customer Reviews (100+)

        Reviews of Ford Performance Drivetrain products have an average rating of 4.8 out of 5

          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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