Ford Performance Mustang IRS Super 8.8-inch Ring And Pinion Set - 4.09 Ratio M-4209-88409A

Ford Performance
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Availability: 5 in stock
$349.00
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  • Fits 2015-2017 Mustang Super 8.8-inch IRS center section 
  • Includes OEM crush sleeve and pinion nut 
  • Requires M-4210-B3 Mustang 8.8-inch ring-gear and pinion install kit  
  • Compatible with Ford Performance 2015-17 Mustang Power Pack Calibrations that are 50 state legal with CARB EO Certificates

·        M-9603-M8 – Mustang GT 5.0L Power Pack 1 

·        M-9603-M8A – Mustang GT 5.0L Power Pack 2

·        M-9452-M8 – Mustang GT 5.0L Power Pack 3

Made in the United States 

  • OEM Quality - our superior surface finish, hardening and manufacturing consistency provide the strongest and quietest gears in the market.
  • Requires aftermarket calibration if vehicle is not originally equipped with this gear ratio or a Ford Performance Power Pack Calibration
  • Note: 3.15 ratio differential not compatible with 3.31, 3.55, 3.73 and 4.09 ratio gears. Use differential M-4204-MT or M-4204-M.