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Ford Performance Ring and Pinion Gear Kit; 3.55 Gear Ratio (05-09 GT)

Item 50166G05
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      Product Information

      Features, Description, Specs & Installation

      Features

      • Ford Racing Quality
      • Strong Forged Construction
      • 3.55 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Fits 2005-2009 GT, Bullitt and GT500 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 3.55 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 Ford Racing Speedometer Recalibration Tool is an inexpensive way to fix this issue.

      Application. This Ford Racing Ring and Pinion Gear set will fit all 2005 to 2010 V8 Mustangs including the GT, Bullitt and GT500 models. 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, see drop down option above.

      Fitment: 2005 2006 2007 2008 2009 Details

      Ford Performance M-4209-G355A

      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 2005-2010 GT


      Manual
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 3700 5180 6660      
      2 2190 3065 3941 4817 5693 6569
      3 1445 2023 2601 3179 3757 4335
      4 1095 1533 1971 2408 2846 3284
      5 744 1042 1340 1638 1936 2233


      Automatic
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 3525 4935 6345      
      2 2507 3510 4513 5515 6518  
      3 1686 2360 3035 3709 4383 5058
      4 1095 1533 1971 2408 2846 3284
      5 777 1088 1399 1710 2021 2332
      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

          • Bullitt - 08, 09
          • GT - 05, 06, 07, 08, 09

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