8.8 IRS Loaded Differential Housing w/3.55 gears

$1,225.00
$1,225.00 $1,375.00
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Product description
  • Loaded differential housing for Mustang IRS
  • Fits 2018-2024 Mustang 
  • Fits 2015-2017 Mustang (see technical notes below)
  • Iron housing with aluminum cover
  • Includes 3.55:1 ratio gear set M-4209-88355A and Traction-Lok differential M-4204-M    
  • Custom calibration required for speedometer and shift corrections 
  • Original Equipment on 2019 Mustang GT   
  • Note-on 2015-2017 Mustang, pinion flange change may be necessary; comes with pinion flange with 93mm bolt circle and 110mm driveshaft pilot installed. For applications that require 95mm bolt circle and 113mm driveshaft pilot, use FR3Z-4851-B pinion flange, available through Ford dealer  
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