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Ford Performance 3.55 Gear and Install Kit (15-17 Mustang)

Ford Performance 3.55 Gear and Install Kit (15-17 Mustang)


Market Price $429.99 You save $70 (16%)

Part # BPK-024

Brothers Performance Kits 024

Ships Within 24 Hours

Availability: In stock



  • Significantly Improves Acceleration
  • 3.55 Ratio is Great for Street/Strip Applications
  • Includes Everything You Need To Swap Gears & Save Money
  • High Quality Ford Racing Ring & Pinion Gears; The Best Gears Available
  • Improves ET's
    This Ford Racing 2015-2017 Mustang 3.55 ring and pinion gear and install kit Improves ET's and saves you money. Kit includes all items necessary to swap your factory gears to a 3.55 ratio Ford Racing set of forged ring and pinion gears. These gears are manufactured to the same tolerances and at the same plant as your factory Mustang gears which are designed to last over 100,000 miles.

    Quality & Design
    Ford Racing gears are designed to put down the power and are stronger and quieter than competing gears. These heat treated gears are made in the USA and feature beveled edges to eliminate tooth chipping and gear failure. The installation kit includes OEM quality bearings for maximum strength and durability.

    Proper gear installation can be a little challenging, so we recommend professional installation. Changing your Mustang's gear ratio will alter the calibration of the speedometer and will need to be recalibrated using a tool such as an SCT Power Flash Tuner.

    Kit Includes:

  • Ford Racing 3.55 Gears: M-4209-88355A
  • Ford Racing 8.8" Ring & Pinion Installation Kit: M-4210-B3
  • Redline Synthetic 75W90 Gear Oil (x2): 50304
  • Ford Racing Friction Modifier: M-19546-A12
  • Fits

  • 2015-2017 Mustang GT, V6 and EcoBoost (Exc. Performance Pack)
  • Applications with 3.15 OEM Gear Must Upgrade to Differential Designed for 3.31 or Numerically Higher Ratio
  • Reviews