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Ford Performance Ring and Pinion Gear Kit; 3.73 Gear Ratio (99-04 Mustang GT)Find parts that fit my vehicle

Item 24001G99
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500+ Reviews | 11 Answers
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$254.09

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    Frequently Bought Together

      Product Information

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

      Features & Specs

      • Ford Racing Quality
      • Strong Forged Construction
      • 3.73 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Fits 1999-2004 GT, Bullitt, Mach 1 and Cobra 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 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 1999 to 2004 V8 Mustangs including the GT, Bullitt, Mach 1 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.

      Ford Performance M-4209-88373N

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

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (10) Differential housing cover bolts
      • Silicone sealant (new continuous bead for differential housing cover)
      • (10) New differential ring gear bolts
      • Maximum strength retaining compound (Loctite 638)
      • (1) Pinion nut (new)
      • Rear axle lubricant (approximately 2.84-2.98L / 5-5.25 pt)
      • (4.0 oz) Friction modifier additive (M-19546-A12 case of 12 or Motorcraft XL-3)
      • Rear axle universal joint flange
      • Rear brake disc
      • Rear brakes components (caliper, parking brake cable considerations explained)
      • Axle shaft U-washer
      • Differential pinion shaft lock bolt (new)
      • Differential bearing shims (original and adjusted sizes)
      • Differential bearing caps (marked and reused in original position)
      • Replacement rear axle drive pinion seal
      • Differential pinion bearing adjustment shim
      • Differential drive pinion collapsible spacer (new)
      • Gear marking compound (Motorcraft®High Contrast Hypoid Gear Marking Compound XG-14)
      • Rear axle drive pinion shaft oil slinger
      • Rear wheel speed sensor and bolt
      • U-washer for axle shaft (with rubber O-ring)
      • Small amount of rear axle lubricant for universal joint flange splines

      4.9

      Customer Reviews (500+)

      Questions & Answers (11)

      Will It Fit My Mustang

      • Bullitt - 01
      • GT - 99, 00, 01, 02, 03, 04

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